Calamine 9 gm, Borax 6 gm, Coptis 3 gm, Human nails 1.5 gm (baked in a pan until crisp, do not use if there is no opacity). Mix with cold water when used, apply to the eyes, three times a day. If there is eye opacity, mix with human milk and apply. If the eye opacity is large and thick, do not use Coptis water to grind the medicine, instead use cicada slough (with all legs, remove wings and soil) 3 gm, decoct in water and grind.

bubble_chart Preparation and Dosage

First, crush the Coptis (Huanglian) and soak it in a bowl. In cold weather, soak for two to three days; in hot weather, soak for one day. Strain the soaked Coptis water to obtain approximately 30 ml of clear liquid. Then, mash the remaining three ingredients into a fine powder. Combine the Coptis water with the powder in a medicine mortar and grind it thoroughly, following the same method as before, until it becomes extremely fine. Once ground, place the mixture, including the water and medicine, into a large dish. During the day, let it dry in a shaded area, and at night, expose it to dew. In winter, it can be slightly sun-dried. If there is wind or dust, cover it with thin paper. Once dry, store it in a bottle, ensuring it is airtight. When needed, mix it with cool water and apply it to the eyes three times a day. If there is eye opacity, mix it with human milk and apply. If the eye opacity is large and thick, do not use Coptis water to grind the medicine; instead, use 3 grams of cicada slough (with all legs intact, wings and soil removed) boiled in water to grind the medicine.

bubble_chart Indications

Eye distension and pain, or slight nebula, or red blood vessels in the eyes, or canthus ulceration, or occasional blurred vision due to heat.