About 30 minutes ago, I noticed that my penis was starting to itch, and eventually noticed a quite aggressive looking red rash on the head (I am uncircumcised). It seems unlikely that it would be an STI as I ve only ever had sex with my current girlfriend, who was also a virgin before we started seeing each other, but we did have unprotected sexual intercourse only two or three days ago.
Hi This is a fairly common condition in men who are not circumcised, this is called balanopothesis which is the inflammation of glans penis and foreskin due to frictional injury due to intercourse. I would recommend you to use topical antifungal cream mixed with topical steroids and apply it on glans penis twice a day for 5 days and keep your personal hygiene good and use good amount of lubrication during intercourse to decrease the friction. My last suggestion for you is to get circumcision done as this condition will recur again and again until you get your circumcision done. Hope I have answered your query. Let me know if I can assist you further.