Thank you. I did went for urgent care and they swabbed it. Waiting for a result.
But today I notice a small pimple at the entrance of anus with white pus looking. Is it also due to Herpes? I am scared it been 13 days since I had sex. It was vaginal sex.
Herpes isn't usually tiny white spots, though it does sound like these could be blisters in the way you describe them as breaking.
You really need to see a doctor. Don't touch them, though - if there is fluid, the doctor can break them and culture that fluid and find out if it's herpes. That is the absolute best way to get diagnosed.
If they do a culture, make sure they do a type specific culture to find out if you have type 1 or type 2 genitally.
Don't freak out, though - it might be fungal or some kind of bacterial infection like balanitis. You do need to get it checked, though.