The evil eye is a poison which Allah puts in the eye of the looker when he admires something and does not ask for blessing. There is no disagreement that it is permitted to make charms using the Names of Allah and His Book. There is nothing wrong with using the refuge prayer. There is nothing wrong in using medical treatment, drinking medicine, being bled and cauterisation.
Cupping is good.
Kohl It is permitted for men to use kohl for treatment and it is a cosmetic for women. This is one of two positions from Imam Malik. What one is not permitted to use in treatment Wine, impurities, that which comes from carrion or anything which Allah Almighty has forbidden are not used for medical treatment. Nothing of carrion is used since it is unclean. There is nothing wrong in cauterisation and using charms with the Book of Allah or using good words.