For over a year i've had this skin development, along my penis. i don't think it's a skin tag, possibly some sort of wart. could you please help me?

Doctor to evaluate: Rashes are quite hard to describe and diagnose in words. A primary care doctor, a dermatologist, or a urologist will have to look at a penis rash in order to tell what it is. If an eczema rash, hydrocortisone cream often helps. If warts, molluscum, or some other infection, special treatments are needed. Some penis bumps are considered normal, such as comedones.