Hydrogen Peroxide is a topical solution with properties such as antibacterial, antifungal and antiviral. It is used to prevent the infectionsoccuring due to open scrapes, cuts and wounds. Hydrogen peroxide is also used for the treatment of leg ulcers and pressure sores.
Hydrogen Peroxide works on the principle of oxidation, it works by liberating oxygen when applied to the affected area. Hydrogen Peroxide also functions by produsind destructive free radicals of oxygen that attacks the pathogen's cell membrane and DNA, and thus destroy the pathogen and arrest the progression of the disease. 
Hydrogen Peroxide should be used as advised by the doctor and follow the labelled instruction.