This is Dr. David
allergies of your penis can be very serious and painful.
that is good you are using cold packs.
you need to use 25-50mg of benadryl to help decrease the allergic reaction
you need to see a doctor at the ER about it.
you may need stronger medications like prednisone steroids to help calm down the swelling.
you don't want this swelling to get worse and affect your penis function and erections and urination in the future.
let me know if you have other questions.
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