I have over a week now it itch some times It looks like a little bump
You have a condition called Balanitis.
Balanitis is swelling (inflammation) of the foreskin and head of the penis.
Causes, incidence, and risk factors
possible causes include:
Diseases such as reactive arthritis and lichen sclerosis et atrophicus
Not rinsing soap off properly while bathing
Redness of foreskin or penis
Other rashes on the head of the penis
Painful penis and foreskin
Signs and tests
Your health care provider may be able to diagnose your balanitis by examination alone. However, you may need skin tests for viruses, fungi, or bacteria. Sometimes, a skin biopsy is needed.
Treatment depends on the cause of the balanitis. For example, balanitis that is caused by bacteria may be treated with antibiotic pills or creams. Balanitis that occurs with skin diseases may respond to steroid creams. Anti-fungal creams will be prescribed if it is due to a fungus.
Most cases of balanitis can be controlled with medicated creams that are either antibacteria, antiyeast or topical cortisone and good hygiene.
Long-term inflammation or infection can:
Cause an infection
Affect the blood supply to the tip of the penis
Calling your health care provider
Tell your health care provider if you have any signs of balanitis, including swelling of the foreskin or pain.
Good hygiene can prevent most cases of balanitis.