STI/STD or yeast/fungal infection

I never had a rash before and have been with the same partner for a couple months now. We see each other once a week. Last week we had unprotected sex and it was more intense and rough than previous and lots of fluid exchanged, immediately after i saw some sores and discolouration on the glans of my penis. i took a shower after the encounter and the next day I saw a rash on the glans of the penis. A couple days later i was itchy in the groin area where the thigh meets the leg on one side and then I got a rash. is also one lesion the other side where the leg meets the groin area. there is one spot around my belly button that is very itchy as well. its very itchy and starting get burning too. The glans of the penis is not itchy.

I've been applying lamisil and fucidin be proactive. I spoke to my girl and she said she had a rash for 4-5 months all over her body that is unexplainable. She's been to doctor and the creams and antihistimes havent worked for her. She is now afraid she gave me her rash.

what could it be??

btw i shaved the area after the rash appeared to clear it of any hair.

 

Oh i forgot to mention that there was an odour when we had sex that came from the my lady's private parts

Not a doctor... but it sounds like it could be fungal, since you mention a smell coming from the females reproductive organ. I can’t imagine it to be HPV if it developed so quick, as far as I was aware herpes and warts a short while after the encounter to develop (more than 1 week after) I would go to sexual health regardless to be honest. The rashes on your legs look like folliclitis so it might not be fungal but in fact bacterial like a staph infection. I’d would be doing the same as you and put anti fungal and fucidin being an antibiotic cream on. But dude go to sexual health like.