I'm a 32 year old male 6'0 and 195 lbs.  I had a hard workout on Monday.  The next day i noticed kind of an air bubble on my penis.  It went away at night and was still gone the next morning.  After a few hours at work the swelling returned and when I got home it moved from the top and side of my penis and my scrotum swelled.  I think it may be a hernia, it does not hurt and was hoping to get an answer.  Trying to see my primary physician tomorrow.  I went to urgent care and the Dr. thought it may be an allergic reaction.  However when I saw him the swelling had subsided.
Hello, It could be folliculitis or eczema. As a first line management, you can apply low potency steroid creams like betamethasone for symptomatic relief. If the lesion persists, it is better to consult a dermatologist and get evaluated. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Shinas Hussain, General & Family Physician