Skin cells die a little before they are meant to, and build up during their hardening stage before they are supposed to stack up to form the normal, protective top layer of the skin. What results is a prickly mess building up in many pores, resulting in that "goose-bumpy" feeling, and occasionally prevention of hairs from coming through the follicle properly, leading to a few pimples. On the behind and thighs, pressure and friction from sitting, and from rough clothing like jeans, pushes more dead skin cells and oils into the pores, causing clogging and irritation.
The answer to all of this is exfoliation, hydrating moisturizer and protection from friction. In terms of exfoliation, this is achieved inside the pores using Alpha Hydroxy Acids (AHA’s) and Benzoyl Peroxide (BPO), and outside on skin’s surface using exfoliating gloves. Then, hydration would come in the form of a non-clogging lotion that would replenish and sooth. FInally, moisture absorption and prevention of friction, applied once to twice daily before getting dressed. The overall treatment would be as follows:
Step 1) Use exfoliating gloves every shower with a wash on affected areas.
Step 2) After your shower use an hydrating lotionover the area, rub in thoroughly, let dry.
Step 3) Apply sunscreen to the area religiously unless you are certain the area will have absolutely no sun exposure. If there is no sun exposure, no other moisturizer is needed.
Step 4). For breakouts on butt and thighs, apply cream to entire affected area, before getting dressed and again before working out or sitting for long periods.