Dermatology Questions? Ask an Online Dermatologist.
Can you attach the photos? How tall are you? How much do you weigh? Any other symptoms? Any medical problems? Any surgeries? Any other medications? Any family medical history?
Did you save the area? Are you using the same shaving razor for about a month?
Acne typically affects those areas of the body that have the largest, hormonally-responsive sebaceous glands, including the face, neck, chest, upper back, and upper arms. Most likely it is acne. Try non-prescription acne products include salicylic acid, benzoyl peroxide, sulfur, alpha hydroxy acids, and tea tree oil. If the non-prescription products don't work after three months of treatment, you should see your primary care doctor.