Alum does not have ten efficacy, alum’s main effect is to detoxify and kill insects, astringent blood, dry dampness and itching, etc., specific as follows:
1. Detoxification and insecticide: alum can kill scabies, mites and other parasites when used externally, and also has an inhibitory effect on some fungi.
2. astringent hemostasis (with astringent drugs to treat bleeding conditions): alum has astringent properties, mainly used for the skin surface or mucous membrane bleeding, such as superficial skin ulcers, blood in stool, hemorrhoidal hemorrhage, etc., can be diluted with alum for external use.
3. Dampness and itching (through the treatment of dampness to stop itching): alum can reduce skin irritation to the outside world, relieve skin itching, eczema, oozing, etc. can play a dampness and itching effect.
Improper application of alum may lead to allergies and other adverse reactions. Caution should be exercised if the skin is severely broken.
It is recommended to apply under the guidance of a professional doctor to avoid the adverse reactions caused by private medication.