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What is red non-itchy red bumps clustered on the chest?
This is sort of a normal thing, it is because of the hair folicles. They gather up too close together in places like your thigh, knees, chest, etc. The best way to get rid of them is to apply lotion...
I guess,its an alergies and you can also should visit dermatologists about that, but for the meanwhile, you can help yourself with your skin by using lotions or such with Phytessence Wakame, Cynergy...