The principle is to reduce inflammation, swelling and promote local blood circulation.

1. For those whose lesions are not broken at the beginning, 10% camphor spiritus, 10% camphor ointment, frostbite ointment or honey lard ointment (containing 70% honey and 30% lard), choose one or two of them to be applied externally 2-3 times a day. Warm water soak the local before applying, and repeatedly rub the affected area, the effect is better.

2. If it has been broken, in addition to the above ointment, it can be added with Revlonur paste, 1% erythromycin ointment, 0.5% neomycin ointment or 10% ichthyol ointment, etc., which can be used externally once a day.

3. Vasodilator: oral niacin, nicotinic acid inositol ester, nitrophenylpyridine, cerebral ezine and so on.

4. Vitamin E pills, 0.1 grams to 0.2 grams, 3 times a day orally.

5. Chinese medicine prescription:

It is appropriate to warm the sun to disperse cold, blood circulation, the formula with angelica four reverse soup and prescription cinnamon sticks and safflower soup with ephedra 3-6 grams of decoction. Frostbite ulcers can be applied externally with Purple Cloud Cream (30 grams of comfrey, 100 ml of caraway oil, 150 grams of yellow wax).