A scab first formed on my penis head after using hydrogen peroxide because I believed I had gential warts and I also had sex with a new female partner around the same time but I was applying the hydrogen peroxide and toothpaste with hydrogen peroxide for almost a month until the bottle was gone. Then once the scab healed and four days later I masturbated and then small blisters appeared with one big blister then the blister popped and now I m here confused.