The dermatology department of Xi 'an Sanqin Hospital has a good effect on onychomycosis. First, they used the internationally advanced Olympus microscopic diagnosis system in Japan to quickly and accurately detect 8 1 different types of pathogenic fungi. After determining the shape, quantity, color and species of pathogenic fungi, they took different drugs to treat onychomycosis infected by different kinds of fungi. In the course of treatment, our hospital exclusively adopts the latest research achievement of treating onychomycosis in China, "two-way osmotic softening therapy". This therapy is a pure Chinese medicine green therapy successfully developed by Shanghai Medical Research Center after years of painstaking research. It combines external pure traditional Chinese medicine antifungal drugs with iontophoresis, which improves the permeability of drugs to the maximum extent and makes the drug effect quickly penetrate into the nail root. At the same time, it only takes about 15 minutes to soak in the pure Chinese medicine bath every day, which can not only completely kill pathogenic fungi, but also maintain the nail bed and repair nails. With this therapy, onychomycosis can be completely killed in 3-5 days, and the diseased nail can be recovered in 3-4 weeks without injection and nail removal.