...Well, there are several reasons. First, it is hard to pin point what causes acne. There are many possible factors that can lead to the condition. Second, different people respond to different treatments. You may have the exactly the same condition as your friend but that does not mean both of you will respond equally well to the same treatment....»
Read More: acne-types.blogspot.com
«...Back acne forms on the back and buttocks of people from 10 years old to around 40, and it is likely that it is exacerbated by excessive sweating during athletic activity and the abrasion of tight clothing against the back. Pustules are formed if the pore blockage is close to the surface of the skin, but if it is deeper, then a papule in the form of an inflamed lump can form. This papule has no white head, since the pus will be deeper in the skin, and scratching or squeezing it can cause extensive scarring....»
Full Text: http://how-remove-acne.blogspot.com
tags: cystic acne nutrition, can apple cider vinegar cause acne skin irritation, soy causes acne