PENILE RASHES
Rashes are usually reddish in colour, and can be painful or itchy, with bumps or sores.
A fungal infection of the penile skin is the most common cause of itch and rash over the penis. STDs such as trichomonas, a parasite, are also potential causes. Redness or itching that does not go away should be taken more seriously to rule out skin cancers of the penis.

Causes of penile skin rashes
Sexually Transmitted Infections (STI)

2) Syphilis

3) Genital Warts
Other Causes Of Penile Skin Rashes
1) Balanitis
Balanitis is the swelling and inflammation of the glans (head) of the penis. This region is hidden by a flap of skin called the foreskin in men who are not circumcised.
Fungal balanitis / Inflammation balanitis

A yeast infection, also known as fungal balanitis, is the most common cause of penile skin rashes. During sexual activity, you could be exposed to the fungus, which may lead to a penis infection.
Symptoms include itchiness and redness over the penis, thick white substance collection in skin folds, painful penis and foreskin, burning sensation while urinating, discomfort during sexual intercourse and a repulsive odour over the genital area.
2) Jock’s itch

3) Molluscum contagiosum
A viral infection that causes firm, isolated, round bumps on the skin. They may be itchy and swollen.

4) Parasite infection

Pubic lice may lay their eggs in the genital region and are distributed most widely by sexual contact. Teenagers are the most likely victims. Itching and sores are common symptoms of a pubic lice infestation.
Scabies is an itchy skin rash brought on by tiny mites. They burrow into the skin, causing severe itching, especially at night.
5) Allergies and autoimmune disorders
Psoriasis is a skin disease that affects many people. Although the cause is unclear, doctors believe it is caused by an autoimmune condition. It can cause a rash that is pinkish, scaly, and itchy anywhere on the body. Psoriasis can also cause rashes in the genital area in men.
Treatments for penile skin rashes
If you’re feeling extreme irritation that won’t go away, you should see a doctor. Many conditions that cause rashes on the penis are easy to manage.
In addition to treating the underlying condition, your doctor can prescribe a cream to alleviate the symptoms.
If the infected area is kept clean and dry, certain skin infections may recover without treatment.
Some of the treatment options are listed below:
Creams

Oral tablets

Drying agents

Circumcision

Others
Lice may be treated with a medicated wash that is applied directly to the infected area, left on for the specified time period, and then washed away.
Clothing and bedding should be washed in hot water to avoid reinfection.
What is the outcome of penile skin rashes?
The underlying cause can usually be treated, and the rash will go away once treatment is completed. Parasites and diseases that aren’t sexually transmitted infections (STIs) can be treated and avoided with proper treatment and hygiene.
Throughout this scenario, if the symptoms don’t go away on their own, you should see the doctor.