acne is only caused by one thing. and that is dead skin cels that slide over a pore, causing it to get clogged.
see what happends normaly is, when a sin cell dies, it starts to fall off the face, by sliding down. its a process called "roughage". but, some people (people with acne) their dead skin cells fail to full leave you skin, and when they end up siting on a patch of body where a por ie located9almost everywhere), it becomes clogged and a pimple appears. this is THE ONLY WAY acne happens.
'efoliation" is the act of scrubbing away all the dead skin cells not removed by "roughage". "loofas" are products designed to efoliate the body.
if he was to buy one, and use it three times a day leading up to a contest...eh would never have dead skin cells on his back, and thus, never have any acne.
Partially true. It's actually a bacterial infection caused by
P. acnes. The clogged pores from the dead skin cells will help to produce conditions ideal for proliferation of this bacteria, since it's metabolism is anaerobic. This is why "clean skin" and "exfoliation" are good things.
The other important factors are oil/sebum production (increased with hormones) and genetics.
In severe cases of acne, like this, often just cleaning the skin is not enough, and the 2 other avenues of treatment (prescription) include :
A) antibiotic - since all acne is caused by an infection
B) accutane (isotretinoin), and its derivatives - this decreases sebum production, but often causes increases in liver enzymes (exacerbated by steroid use)