Hello,
You seem to have allergic or irritant rash on your penis. A few causes are
genital psoriasis, sexually transmitted infections,
balanitis either bacterial or fungal, eczema,
allergic reaction to condoms, lichen
sclerosis, friction, Peyronie's disease, and
urinary tract infection.
Treatment depends upon the cause. You may be able to relieve some irritation at home using any of the following methods. Moisturizers or anti-itch creams. Look for creams made especially for the penis area. These are less likely to contain harsh ingredients. Salt baths. Taking a salt bath can help with itching and discomfort.
Cool compresses. An ice pack or another cool compress can relieve irritation. Wrap it in a cloth first before applying to your skin to avoid over-chilling the area. Abstaining from sex. Avoiding sexual intercourse and other activities that may aggravate the skin around your penis is a good idea until your symptoms improve. If your condition doesn't improve, you need to consult a physician for further evaluation.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Pallavi M., Anesthesiologist