A week ago i noticed that my corona glans is swollen and my penis head is red and it gets irritated when i walk , i noticed a very small red dot on my penis head , it's not painful or itching . But the corona glans is irritated for 1 week and it looks like it's covered with blood vessels, i don't feel any pain unless i touch it then i feel small irritation , i'v had unprotected sex 1 month ago and i was thinking i have genital herpes but i don't have any sores . What could it be ? Do you think this could happen from mastrubation also or some allergy from shampoo . I"m really concerned about this , is somebody could help me to find an answer i would appreciate that . I'm currently using Hydrocortisone 2.5% and it seems to have small results . Thank you !