I’m so confused ..

so , always use condoms . My last partner without a condom was over 2 years ago. i had sex the other day with my ex ( with a condom) and we did it from the back. im on acutane ( its a strong medicne to clear acne scars ) . they say dont wax because your skin could rip off. i notice when i scratch my face it burns and my nose bled and skin came off from that, i wear thongs a lot so it itched a little so i scratched it until it felt better then i noticed this. im so worried and confused .. could this be herpes ?

looks like it but it could also be skin irritation from how you described it

It looks like skin irritation but that one spot looks like it could be herpes go get checked