Is it possible to have a rush on penis without contacting HIV?

 
HIV does not cause a rash on the penis. Rash on the penis is most commonly due to other infections, most usually due to Candidiasis. There are several other causes of rash or sores or blisters or ulcers on the genital regions. HIV does not cause any of these symptoms. You must consult a doctor who can prescribe the appropriate medication for you after examining you.