My younger brother who just turned four was playing outside and he ended up sitting in an ant pile and the ants crawled up his shorts and bit his penis . When I took him inside to look at it, it seemed fine , but earlier on he was complaining that it was itchy and it hurt . Looking at it again the tip of his penis is all swollen and the puncture marks had green heads on them . I was just wondering what was the best way to go about treating this or if we need to seek medical help ?
Hi...this is insect bite allergy and ant bites have formic acid in it to aggravate the situation. I suggest you use calamine lotion for external application, along with oral ant allergic like HY Chat Doctor.  These are prescription medicines and I suggest you seek your physician for a prescription or else use any over the counter antihistamines licensed in your country to be used in this age group. Regards -