most helpful answer using two condoms are probably a bit more than most people need but if you want to use (or have your partner use two) go for it. condoms still break (not as often as some people claim however) and many pathogens are inadvertently shared during foreplay prior to the condom being used. you are wise to be careful. for instance herpes can be transmitted from one person to another even if you use a condom since many herpetic lesions are in areas that are not protected by condoms.
if only one has it they are using two condoms during intercourse is there still lots of risk involved?