My boyfriend and i have been having sex. he uses condoms but the last two times his willy been hurting him. it's red and sore?

Latex allergy?: Hi, I am wondering if he is either allergic to the latex or substance the condoms are made off or the antisemen paste they often contain. Try to switch brands or use nonlatex condoms. Other possibilities are an std or other infection, or a reaction to a lubricant or vaginal fluid. Usually the irritation from any allergy gets worse the more often you come in contact with the cause.