This problem is normally located on the face, back, and upper portion of the chest. These areas are worst hit because they have the highest number of oily glands. What a lot of people don’t realize is that there are several different types of this issue. And to make matter even more complicated, each of these types have their own causes and effects as well as methods of prevention. 
Salicylic acid is a topically applied beta-hydroxy acid that stops bacteria from reproducing and has keratolytic properties. It opens obstructed skin pores and promotes shedding of epithelial skin cells. Salicylic acid is known to be less effective than retinoid therapy. Dry skin is the most commonly seen side effect with topical application, though darkening of the skin has been observed in individuals with darker skin types.
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Acne and stress aren’t connected. FALSE. Scientific studies have shown the opposite to be true. Students with acne were examined before and after major exams at school, and their acne got worse when they experienced stress before exams. It is a double-edged sword. Acne can cause stress, but it can also get worse with stress. Stress hormones such as cortisol can overstimulate the oil glands in your skin. And we already know that oil, bacteria and dead skin cells are what really cause acne. So try to keep away from stressors while you try to get your skin healthier.
The best acne treatment will also include gentle cleanser. Regular bars of soap have harsher cleansers in them that can create problems of their own and encourage bacteria to spread. It is also a good idea to use makeup wipes to clean off any makeup (if you wear it) before you wash your face. Only washing your face without the wipe or wiping your face without the wash is not a good combination. You will either end up missing some of the makeup or you will end up leaving preservatives and other residues on your face.
If you have non-inflamed acne, it means you have a lot of blackheads and whiteheads, but not a lot of redness and swelling. Most common acne face washes can work well for you. If you have inflamed acne, you want to make sure you buy a facial cleanser that has the ingredients to reduce inflammation, swelling, and redness. But you also want to be careful not to buy or use anything that can cause irritation, dry skin and thus, more redness and swelling.
Benzoyl peroxide attacks the P. acnes bacteria. However, one of its main side effects is dryness: If you’re going to use anything with benzoyl peroxide, make sure to moisturize afterwards. Sulfur and azelaic acid are less common and less severe alternatives to benzoyl peroxide. Dr. Peter Lio, assistant professor of clinical dermatology at Northwestern University, says sulfur-based treatments are “a good fit for patients who can’t tolerate the side effects of benzoyl peroxide.”
Just as its name suggests, this oil-free cleanser comes out in suds, making it one of the most frothy-fun face-washing experiences you'll ever have over the bathroom sink. (Just try not to blow those bubbles, we dare you.) But the bubbly formula isn't all froth and games—it's also spiked with salicylic acid to target (and prevent) breakouts and aloe to soothe underlying redness.