Hello dear,
Understand your concern.
Masturbation cause no blister.
There is some other reasons.
Following are the cause of your problem
1. Hygiene problem
2. Balanitis:
caused by poor hygiene, especially insufficient washing under the foreskin area.
Thrush,
psoriasis, skin sensitivity or allergy to a product used on the penis (such as soap or lubrication)
3. Fungal infection: in warm enviorment.
4.
Sexually transmitted disease : Most common gonorrhea
Take following advice:
1. Showering after a workout, changing underwear, using a clean towel to dry off with and not redressing until the area is completely dry
2. Use formulated penis vitamin formula- Man 1 Man Oil-contain:
with vitamins, minerals and shea butter- it moisturizes the skin and prevents flaking or cracked skin while revitalizing and enhancing the sensitivity of the penis
3. Apply anti fungal
clotrimazole cream if severe or not resolved.
4. Apply neosporine powder
5. Take
azithromycin 500 mg once per day for 5 days
Hope this may help you.
Best regards
Dr. Sagar