Lotte bright nail generic name is compound povidone iodine application, gray nail is also known as onychomycosis, compound povidone iodine application can treat gray nail, whether it can be cured, the individual difference is very big. Compound povidone iodine application is a dermatological topical medicine, used for tinea pedis, tinea corporis, tinea capitis, tinea pedis, tinea pedis, tinea pedis, concurrent bacterial infections can also be used, as well as mosquito bites, hyperhidrosis of the hands and feet and so on, so it can treat ringworm of the nails. Mainly through the gradual release of iodine and play a bactericidal effect, through the bacterial body protein denaturation, so that the bacterial death of bacterial fungi viruses effective. Aspirin hydrolyzed to produce salicylic acid has anti-inflammatory effect, can enhance the drug skin penetration. Adverse reactions occasionally see burning sensation of the skin, rash itching, etc.; contraindications are not clear. Nail fungus is recommended to first go to the hospital for examination, under the guidance of the doctor to use drugs, to avoid their own abuse of drugs.