Hingu for Conjunctivitis: Benefits, How to Use & Dosage

Hingu for Conjunctivitis: Does It Work?

Does Hingu (Asafoetida) help with conjunctivitis? Only in a narrow, practitioner-led way. Hingu is mainly a digestive medicine, and its one classical eye link is as a minor ingredient in a clinical preparation for the Kapha type of conjunctivitis.

Ayurveda calls conjunctivitis (Abhishyanda), meaning "that which flows or overflows." Sharangadhara Samhita describes four types: one from each dosha and one from the blood. Most cases are driven by Pitta, the hot dosha, which makes the eye red, burning and sensitive to light.

Hingu is pungent, light, slightly oily and sharp (Tikshna), with a hot potency (Ushna Virya), meaning it heats the body. It calms Vata and Kapha, but Ashtanga Hridaya states plainly that it aggravates Pitta. That makes it a poor fit for the common red, burning eye.

What the classical texts say

Sushruta Samhita, Uttara Tantra, Chapter 11, on Kapha-type conjunctivitis, lists Hingu alongside rock salt, Triphala, licorice, white lotus and several mineral and metal ingredients.

Also with saindhava, hingu (asafoetida), triphala, madhuka, paundarika (white lotus), anjana (antimony), tuttha (copper sulfate), and tamra (copper).
Sushruta Samhita, Uttara Tantra, Chapter 11: Kaphabhishyanda Pratishedha Adhyaya

This is a clinical eye preparation that includes minerals and metals. It belongs with a trained practitioner, never in a home kitchen.

How Hingu Helps with Conjunctivitis

Hingu's link to conjunctivitis is indirect. Our sources describe it as one of the best digestive stimulants (Deepana) and a remedy for gas and colic, not as an eye herb. Its eye role comes only from its qualities and from one Kapha-type preparation in Sushruta Samhita.

Sharp heat against heavy Kapha

Kapha-type conjunctivitis brings thick, sticky discharge, itching and heaviness around the eyes. Hingu is light, sharp and hot, qualities that cut through Kapha's heaviness and stickiness. That is the logic behind its place in the Kapha chapter of Sushruta's eye treatments.

Why it works against Pitta-type conjunctivitis

Ashtanga Hridaya, Sutrasthana, in the chapter on food, says Hingu mitigates Vata and Kapha, relieves bloating and colic, and aggravates Pitta. The same passage notes that pungent and salty substances are not good for the eyes and vision.

Hingu (asa foetida) mitigates vata, kapha, cues distension of the abdomen and colic, aggravates pitta, pungent in taste and at the end of digestion, enhances taste, hunger, digestion and is easily digestible.
Ashtanga Hridaya, Sutrasthana, Annaswaroopa (Food)

Since most conjunctivitis is a Pitta problem of heat in the eye, Hingu can add fuel to the fire. Cooling measures such as Triphala, rose water and ghee, named in our conjunctivitis guide, suit that pattern better.

How to Use Hingu for Conjunctivitis

First, see an eye doctor for any red, painful or discharging eye. Do not put Hingu, or any powder, paste, oil or juice, into or near your eye yourself.

The classical eye preparation is practitioner-only

Sushruta's Kapha-type preparation combines Hingu with rock salt, Triphala, licorice, white lotus, antimony, copper sulfate and copper. Mineral and metal ingredients like these need specialist preparation, and the decision to use them belongs to a qualified practitioner.

Internal use

Our sources give no conjunctivitis-specific dose for Hingu. For its usual digestive role, Ayurvedic practice uses a small dose of 100 mg to 1 g per day, traditionally dissolved in warm oil or ghee first. Whether any of that helps your eyes is a question for your practitioner.

Match it to your type

Kapha type (thick, sticky discharge, itching, worse on waking): the only type with a classical Hingu link.
Pitta type (bright red, burning, light hurts): avoid Hingu; it aggravates Pitta.

Who should avoid it

Avoid medicinal doses of Hingu in pregnancy, with hyperacidity or ulcers, with high fever, and if you run hot. Avoid internal use in children under two.

Frequently Asked Questions

Is asafoetida good for pink eye?

Not for most pink eye. Hingu aggravates Pitta, and most conjunctivitis is the hot Pitta type. Its only classical eye link is as one ingredient in a practitioner-made preparation for Kapha-type conjunctivitis.

Can I put Hingu on or near my eyes?

No. It is sharp and hot, and the classical preparation that contains it also contains minerals and metals. Do not self-apply anything to the eye, and see an eye doctor for a red, painful or discharging eye.

Is it fine to keep cooking with Hingu while I have conjunctivitis?

Our sources treat daily kitchen use as fine long term, but they also say Hingu aggravates Pitta. If your eyes are red and burning, it is reasonable to ask your practitioner whether to cut back on hot, pungent foods for a while.

What is a better herb for red, burning eyes?

Cooling herbs suit the Pitta type better. See Amla for conjunctivitis, Coriander for conjunctivitis or Licorice for conjunctivitis.

Recommended: Start Hingu for Conjunctivitis

If you are looking at Hingu for conjunctivitis, the honest starting point is an eye doctor first, then a qualified Ayurvedic practitioner who can tell you whether your pattern is Kapha, Vata or Pitta.

Best form: plain Hingu powder as a cooking spice, only if your practitioner confirms a Kapha or Vata pattern and you do not run hot. It is a digestive aid, not an eye remedy, and never goes near the eye.

Dosha fork: for heavy, sticky Kapha-type eyes, Hingu's sharp warmth fits the classical logic. For red, burning Pitta-type eyes, skip it and ask about cooling support such as Triphala taken internally.

Find Hingu on Amazon ↗ Triphala Powder ↗

Safety note: see an eye doctor for any red, painful or discharging eye, do not self-apply anything to the eye, and avoid medicinal Hingu in pregnancy, with ulcers or hyperacidity, and in young children.

Safety & Precautions

As a cooking spice, hingu is used safely by millions of people every day. At therapeutic doses its heat is the main thing to respect.

Who should avoid it

Pregnancy. Listed as a contraindication; do not use it as a medicine while pregnant.
High Pitta. Hingu aggravates Pitta, so people who run hot, or who have hyperacidity, gastric or duodenal ulcers, or severe gastritis, should skip it.
Inflammatory conditions of the liver and brain. Listed contraindications.
High fever or rashes. Its heat can worsen an already hot picture.

Drug interactions

No drug and herb interactions are known. If you take prescription medicines, still tell your doctor before using therapeutic doses.

Dose and overuse

Keep to the low range of 100 mg to 1 g per day. Signs that you are using too much are the signs of excess Pitta: burning in the stomach, sour belching, or feeling overheated. Cut back or stop if they appear.

A label check

Most commercial hing is blended with wheat or rice flour as a flow agent. If you have celiac disease or gluten sensitivity, choose a product that states it is gluten free.

Other Herbs for Conjunctivitis

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Abhrak Mica (complex aluminium silicate)

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Aloe Vera Aloe barbadensis Mill. (Syn. A. vera Tourn. ex Linn.)

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Alum Potash Alum

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Amla Emblica officinalis

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Apple Pyrus malus Linn.

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Arjuna Terminalia arjuna (Roxb.) W. & A.

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Bael Aegle marmelos

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Bala Sida cordifolia Linn

See all herbs for conjunctivitis on the Conjunctivitis page.

▶ Classical Text References (7 sources)

being pungent and salty in taste are not good to semen, ojas (essence of the tissues ), hairs and eye (vision) 151 ह गु वातकफानाह शूल नं प त कोपनम ्॥१५२॥ कटुपाकरसं यं द पनं पाचनं लघु । Hingu (asa foetida) mitigates vata, kapha, cues distension of the abdomen and colic, aggravates pitta, pungent in taste and at the end of digestion, enhances taste, hunger, digestion and is easily digestible.
— Astanga Hridaya Sutrasthan, Annaswaroopa Food

Katu Gana – group of pungents:कटुको ह गु म रचकृ मिजत प चकोलकम ् कुठे रा या ह रतकाः प तं मू म करम ् Hingu- Asa foetida Maricha – Black pepper, Krimijit – Vidanga, Panchakola – Chitraka, Pippalmoola, Pippali, Chitraka and ginger, leafy vegetables such as Kutheraka and others (mentioned in verse 103 of chapter 6 earlier), Pitta (bile of animals), Mutra (urines), Arushkara etc.
— Astanga Hridaya Sutrasthan, Rasabhediyam Tastes, Their

21-24 योषकटवीवरा श ु वड गा त वषाि थराः ह गुस ौवचलाजाजीयवानीधा य च काः नशी ब ृह यौ हपुषा पाठामूलं च के बुकात ् एषां चूण मधु घ ृतं तैलं च सदशांशकम ् स तु भः षोडशगुणैयु तं पीतं नहि त तत ् अ त थौ या दकान ् सवा ोगान यां च त वधान ् ोगकामलाि व वासकासगल हान ् बु मेधा म ृ तकरं स न या ने च द पनम ् Powder of Vyosha- (Trikatu – pepper, long pepper and ginger), Katvi, Vara (Triphala), Shigru (drum stick), Vidanga (False black pepper – Embelia ribes), Ativisha, Sthira (Desmodium gangeticum), Hingu – (A
— Astanga Hridaya Sutrasthan, Dvividha Upakramaneeya

The wound should be fumigated with the smoke of Guggulu, Aguru, Siddhartha, Hingu (Asa foetida), Sarjarasa, Patu (Salt), Sadgrantha(Acorus calamus) or leaves of Nimba (neem), mixed with ghee;
— Astanga Hridaya Sutrasthan, Shastrakarma Vidhi

For preparing Teekshna Kshara – alkali of strong potency the admixture should be similar to that of previous – alkali of medium potency and also the paste of Langalika, Danti, Chitraka, Ativisha, Vacha, Svarjika, Kanakaksiri, Hingu, sprouts of Putika, Talapatri and Bida salt and alkali prepared as usual and used after a lapse of seven days.
— Astanga Hridaya Sutrasthan, Kshar-AgniKarma Vidhi

Source: Astanga Hridaya Sutrasthan, Annaswaroopa Food; Rasabhediyam Tastes, Their; Dvividha Upakramaneeya; Shastrakarma Vidhi; Kshar-AgniKarma Vidhi

[12] Ingredients: oil cake (pinyaka), sauvarchala (a type of salt), hingu (Ferula asafoetida (L)), mustard (Brassica nigra (L)), trikatu officinale (Roscoe), maricha- Piper nigrum (Linn), pippali- Piper Longum (Linn.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 26: Three Vital Organs Treatment (Trimarmiya Chikitsa / त्रिमर्मीयचिकित्सा)

Ingredients: 1 part-hingu (Ferula asafoetida (L)) 2 parts- vacha (Acorus calamus Linn) 4 parts- chitraka (Plumbago zeylanica Linn) 8 parts-kushtha (Saussurea lappa) 16 parts-swarjikshara 32 parts- vidanga (Embelia ribes Burm.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 26: Three Vital Organs Treatment (Trimarmiya Chikitsa / त्रिमर्मीयचिकित्सा)

, hingu- asafoetida Linn, pedunculata Roxb.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 26: Three Vital Organs Treatment (Trimarmiya Chikitsa / त्रिमर्मीयचिकित्सा)

Source: Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 26: Three Vital Organs Treatment (Trimarmiya Chikitsa / त्रिमर्मीयचिकित्सा)

), hingu (Ferula narthex Boiss.
— Charaka Samhita, Sharira Sthana — Human Body & Embryology, Chapter 8: Guidelines for Lineage (Jatisutriya Sharira / जातिसूत्रीय शरीर)

If the patient suffers from edema and pain in the peri-anal region, and if there is suppression of the digestive power, then he should be treated with the combination of powder of trikatu [(Sunthi (Zingiber officinale), pippali (Piper longum)and maricha (Piper nigrum)], pippalimool (Piper longum), patha (Cissampelos parrira), hingu (Ferula narthex), chitraka (Plumbago Zylanica), sauvarchala (one kind of salt), pushkarmool(Inula racemosa), jeera (Cuminum cyminum), Pulp af bilva (Aegle marmelos),
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 14: Hemorrhoids Treatment (Arsha Chikitsa / अर्शचिकित्सा)

Chitraka, pippalimoola, two kshara (yavakshara and sarjikshara), salt, trikatu, hingu, ajamoda and chavya are mixed together and trichurated with either matulunga svarasa or dadima svarasa and tablets are prepared.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 15: Digestive Disorders Treatment (Grahani Chikitsa / ग्रहणीचिकित्सा)

Kalinga, hingu, ativisha, vacha, sauvarchala and haritaki with warm water is useful in vomiting, arshogranthi (analpolyp with pellet stool) and pain in abdomen.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 15: Digestive Disorders Treatment (Grahani Chikitsa / ग्रहणीचिकित्सा)

Marichadyam choornam contains one kudava (192 gm) of maricha, kunchika, ambashtha (patha), vrikshamlah, ten pala (480 gm) of amlavetas, half pala (24 gm) each of sauvarchala, bidha, pakya, yavakshara, saindhava, sathi, pushkaramoola, hingu and hingushivatika (vamsapatri).
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 15: Digestive Disorders Treatment (Grahani Chikitsa / ग्रहणीचिकित्सा)

Source: Charaka Samhita, Sharira Sthana — Human Body & Embryology, Chapter 8: Guidelines for Lineage (Jatisutriya Sharira / जातिसूत्रीय शरीर); Chikitsa Sthana — Therapeutic Principles, Chapter 14: Hemorrhoids Treatment (Arsha Chikitsa / अर्शचिकित्सा); Chikitsa Sthana — Therapeutic Principles, Chapter 15: Digestive Disorders Treatment (Grahani Chikitsa / ग्रहणीचिकित्सा)

Hingvashtaka Churna: Hingu (asafoetida — Ferula assa-foetida), Saindhava (rock salt), Shunthi (dry ginger — Zingiber officinale), Krishna Jiraka (black cumin — Nigella sativa), Pippali (long pepper — Piper longum), Yamani (Trachyspermum ammi), and Maricha (black pepper — Piper nigrum) — these eight ingredients constitute Hingvashtaka.
— Sharangadhara Samhita, Madhyama Khanda, Chapter 3: Churnakalpana (Powder Preparations)

— Hingu (asafoetida) six Shana, and the five salts (Pancha Lavana) — two Aru salts included.
— Sharangadhara Samhita, Madhyama Khanda, Chapter 4: Gutikakalpana (Tablet/Pill Preparations)

After purification, form it into a disc (Chakra-like shape), coat it with Hingu (Asafoetida — Ferula foetida).
— Sharangadhara Samhita, Madhyama Khanda, Chapter 12: Rasadishodhana-Maranakalpana (Mercury and Rasa Preparations)

Alternatively, a paste of garlic (Lashuna, Allium sativum), or Hingu (asafoetida, Ferula assa-foetida) with neem may be used.
— Sharangadhara Samhita, Uttara Khanda, Chapter 11: Lepa Vidhi (Topical Paste Application)

Asafoetida's strong odor also repels insects.
— Sharangadhara Samhita, Uttara Khanda, Chapter 11: Lepa Vidhi (Topical Paste Application)

Source: Sharangadhara Samhita, Madhyama Khanda, Chapter 3: Churnakalpana (Powder Preparations); Madhyama Khanda, Chapter 4: Gutikakalpana (Tablet/Pill Preparations); Madhyama Khanda, Chapter 12: Rasadishodhana-Maranakalpana (Mercury and Rasa Preparations); Uttara Khanda, Chapter 11: Lepa Vidhi (Topical Paste Application)

Hingvashtaka Churna: Hingu (asafoetida — Ferula assa-foetida), Saindhava (rock salt), Shunthi (dry ginger — Zingiber officinale), Krishna Jiraka (black cumin — Nigella sativa), Pippali (long pepper — Piper longum), Yamani (Trachyspermum ammi), and Maricha (black pepper — Piper nigrum) — these eight ingredients constitute Hingvashtaka.
— Sharangadhara Samhita, Madhyama Khanda, Chapter 3: Churnakalpana (Powder Preparations)

— Hingu (asafoetida) six Shana, and the five salts (Pancha Lavana) — two Aru salts included.
— Sharangadhara Samhita, Madhyama Khanda, Chapter 4: Gutikakalpana (Tablet/Pill Preparations)

After purification, form it into a disc (Chakra-like shape), coat it with Hingu (Asafoetida — Ferula foetida).
— Sharangadhara Samhita, Madhyama Khanda, Chapter 12: Rasadishodhana-Maranakalpana (Mercury and Rasa Preparations)

One Shana (3g) of potent medicine, a Yava-measure of Hingu, and one Masha of Saindhava for Nasya.
— Sharangadhara Samhita, Uttara Khanda, Chapter 8: Nasya Vidhi (Nasal Therapy)

Masha, Atmagumara, Bala, Arubu, Karohi, and Ashwagandha (Withania somnifera) decoction with Hingu and Saindhava.
— Sharangadhara Samhita, Uttara Khanda, Chapter 8: Nasya Vidhi (Nasal Therapy)

Also with saindhava, hingu (asafoetida), triphala, madhuka, paundarika (white lotus), anjana (antimony), tuttha (copper sulfate), and tamra (copper).
— Sushruta Samhita, Uttara Tantra, Chapter 11: Kaphabhishyanda Pratishedha Adhyaya (Chapter on Treatment of Kapha-type Conjunctivitis)

A paste (utsadana) containing Vacha (Acorus calamus) and Hingu (asafoetida) is beneficial in Skanda seizure.
— Sushruta Samhita, Uttara Tantra, Chapter 29: Skandapasmarapratishedha

Devadaru (Cedrus deodara), Vacha, Hingu (asafoetida), Kushtha, Girikadambaka, Ela (cardamom), and Harenuka should always be used for fumigation.
— Sushruta Samhita, Uttara Tantra, Chapter 32: Putanapratishedha

White mustard (Siddharthaka), Vacha, Hingu (asafoetida), Kushtha, along with Bhallataka (Semecarpus anacardium) and Ajamoda (celery seeds) are beneficial for fumigating the child.
— Sushruta Samhita, Uttara Tantra, Chapter 36: Naigameshapratishedha

For a weak patient with a distended, painful abdomen, an application should be made with Daru (Devadaru), Haimavati, Kushtha (Saussurea lappa), Shatahva (dill), Hingu (asafoetida), and Saindhava (rock salt).
— Sushruta Samhita, Uttara Tantra, Chapter 39: Jvarapratishedha

Source: Sushruta Samhita, Uttara Tantra, Chapter 11: Kaphabhishyanda Pratishedha Adhyaya (Chapter on Treatment of Kapha-type Conjunctivitis); Uttara Tantra, Chapter 29: Skandapasmarapratishedha; Uttara Tantra, Chapter 32: Putanapratishedha; Uttara Tantra, Chapter 36: Naigameshapratishedha; Uttara Tantra, Chapter 39: Jvarapratishedha