Summer is the high season for vaginitis and foot fungus. The main cause of the attack is fungal infection (commonly known as mold), especially when the outdoor temperature reaches 22-35℃, the fungus will be especially active after waking up from hibernation. The fungus lives leisurely by eating keratin and oil of the skin and mucous membrane; after reproduction, it will release some toxic substances such as hydrolytic enzymes to destroy the stratum corneum (the outermost layer of the skin or mucous membrane), making the local tissue dry, peeling and congested; the toxins produced by the fungus itself will also cause allergic reactions, inducing itching, blisters and other uncomfortable symptoms on the feet or vagina. When scratching damages the skin and mucous membranes, bacteria will take advantage of the situation and cause lymphangitis, cellulitis, etc. In serious cases, vasculitis can occur, and even systemic infection. Some girls like to wear pointed shoes, over time it is easy to damage the toenail, the fungus will take the opportunity to “gnaw” the toe to hide. If we do not wash our hands or wipe our feet with a special towel after contacting “foot fungus”, then washing or wiping the vulva can cause fungal vaginal infection. Of course, some girls also like to wear nice breathable underwear or use ultra-thin pads every day, creating a warm and humid environment in the vulva, which can easily lead to active fungal reproduction and vaginitis. Many people think that only topical medication is needed to treat these diseases. This is not true, because the types of fungus that cause these diseases are different. The recommended treatment is “1+1” therapy, i.e. internal medication (such as itraconazole or terbinafine for 1-2 weeks) and topical application of dacrynic acid or bifenazole cream under the guidance of a doctor. In fact, internal medication has bactericidal and antibacterial effects, and has been applied in China for more than a decade. As long as the liver function is normal, a reasonable choice of internal medication is more effective than external medication. Whether using internal or topical drugs, it is best to do fungal examination and culture before treatment, because different fungi have completely different effects on different antifungal drugs. The key to preventing fungal infections is to avoid contact with communal slippers, towels and cats and dogs with ringworm. Normally, you should wear loose and breathable underwear, shoes and socks to keep your local area dry; also each person should adopt a towel-specific method and prohibit mixing to prevent cross-infection of yourself.