Gray nail, belongs to the category of “finger nail fungus” in Chinese medicine. Fingernail grass, also known as henna, fenixianhua, this drug has a certain effect on the treatment of ringworm of the fingernails, need to follow the doctor’s instructions for medication. Fenghuanghua is a kind of sweet, cool Chinese herbal medicine, with diuretic, astringent and other effects. It can be used for nail fungus, goose paws, lumbar pain, rheumatic paralysis, postpartum blood stasis, women’s menstrual closure and abdominal pain, bruises, snake bites, carbuncle and gangrene (a kind of venomous sores, occurring on the surface of the body, the limbs, the internal organs of the acute suppurative disease) sores and so on. Therefore this medicine is useful for gray fingernails. The method of treating gray nails is to first scrape a layer of nail from the affected area with a knife, and then use fenugreek flowers to mash and compress the affected area, carbuncle gauze bandage. Frail and pregnant women should take Fenugreek with caution. Adverse effects of this drug is not clear, should be used under the guidance of a doctor to identify the evidence.