Alum for Conjunctivitis

Does Alum (Sphatika, known in Hindi as Fitkari) help with conjunctivitis? Classical Ayurveda does give it a place, but only as one ingredient in eye preparations made by a practitioner. It is not a home remedy for pink eye.

The clearest link comes from the Sushruta Samhita. In its chapter on the blood-type form of conjunctivitis, it lists alum among the ingredients used, alongside coral, conch shell, licorice and honey.

Sphatika (alum), vidruma (coral), conch shell, madhuka (licorice), and honey as well.

Sushruta Samhita, Uttara Tantra, Chapter 12: Raktabhishyanda Pratishedha Adhyaya

The Bhavaprakash Nighantu (Varga 7) also names eye wash among alum's external uses. Ayurveda calls conjunctivitis Abhishyanda, "that which overflows", and sees it mainly as aggravated Pitta, the hot dosha, inflaming the eye.

Alum is not a plant. It is a translucent crystalline mineral, chemically potash alum. Its taste is astringent (Kashaya) and sour (Amla), it is light (Laghu), and its potency is cooling (Sheeta Virya). That cooling, binding character is the reasoning behind its classical eye use. Never put alum in your own eyes.

Ayurveda describes conjunctivitis as Pitta inflaming Alochaka Pitta, the part of Pitta that governs sight. The result is a red, burning, light-sensitive, weeping eye. The Sharangadhara Samhita (Purva Khanda, Chapter 7) says conjunctivitis is four-fold: from blood and from each of the three doshas.

Cooling against heat

Alum's cold potency (Sheeta Virya) runs directly against the heat of Pitta. That is the logic of placing it in the treatment of the blood-type form (Raktabhishyanda) in the Sushruta Samhita (Uttara Tantra, Chapter 12), where heat in the blood is the driver.

Astringency against overflow

Alum's dominant quality is its astringent taste, which tightens, binds and dries. The Bhavaprakash Nighantu lists its actions as binding (Stambhana), stopping bleeding (Raktastambhana) and wound healing (Vranaropana). In an eye that is weeping and congested, a binding, drying substance counters the overflow the name Abhishyanda describes.

Why purification matters

The Sharangadhara Samhita (Madhyama Khanda, Chapter 11) places alum among the minerals that go through formal purification (Shodhana) before medicinal use. Raw crystal sold for shaving has not. Our sources hold no modern research on alum for conjunctivitis, so this page stays with the classical description.

For conjunctivitis, the honest answer is simple: alum is not something you use on your own eyes. Classical texts use it in eye preparations, but those are made, purified and dosed by a practitioner. Our sources give no home preparation, amount or schedule for alum in eye disease.

What you can do instead

The home approach to conjunctivitis in Ayurveda centres on cooling Pitta. Our condition sources describe a Triphala eye wash, rose water to soothe and ghee to calm the heat within. Ask a practitioner how to use these for your case.

See an eye doctor first

A red, painful or discharging eye needs an eye doctor's assessment, especially with vision changes, severe pain, or a newborn. Do not self-apply alum, or any mineral, powder or paste, to the eye.

If you want to bring Ayurveda into your care for conjunctivitis today, the starting point is not alum itself. Alum's classical eye role is inside practitioner-made preparations, so it is not a do-it-yourself product.

Best first step: see an eye doctor to confirm what kind of red eye you have. Then, for the Pitta-cooling home approach our condition sources describe, look at Triphala (used for a practitioner-guided eye wash) and pure rose water, which soothes.

If you want alum for its everyday external uses, such as a small shaving nick, a plain alum block is the household form. Keep it away from your eyes.

Find Triphala Powder on Amazon ↗ Find Pure Rose Water ↗

Safety: do not self-apply alum or any mineral to the eye. Mineral and metal preparations, including alum ash (Bhasma), need a qualified practitioner, and a red, painful or discharging eye needs an eye doctor.