First of all, this season is relatively dry. Usually take a bath, the cutin is fragile, and the friction is too frequent, causing skin discomfort, irritating sensitivity and causing acne.

In addition, often changing clothes and washing clothes, drying towels in the sun, mites are a big reason for skin acne.

Finally, there is the possibility of folliculitis. If it's just youth bean's type, it won't itch for long. It is recommended to see a doctor. Don't apply some medicine casually, let the doctor make sure first.

I can also suggest that you try pure Chinese medicine Lotus Water and spray it on the place where acne grows on the chest and back, which will soon eliminate acne. Don't be afraid to be naked in summer.