Thanks for your query.
Noted your history of a zit like thing on the side of the penis, which you popped with white material and blood getting popped.
This may be just be the small sebaceous cyst or a boil and should get well on its own by body's own healing mechanism.
Consult a Doctor if you get increase in size, pain or redness for a course of an antibiotic and anti-inflammatory medicines.
Hope this helps you
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