I haven't had sex for 6 months but this morning I noticed a white puss ooozing out out my penis and it burns when I pee and today was the first time that this has ever happened and I always us a condom. Was wondering if this could just be a UTI type of infection.

I recommend going to a doctor to find out... because either treatment will require a doctors diagnosis and prescription.

Time for doctor, and yes, can be STD, condoms have a failure rate,