"this medicine works great. i went through a really bad breakout for the past 4 months all over my cheeks, chin and sometimes under my neck. some cystic acne as well as rash like acne. i thought it was hormonal and went to the doc..all my hormone checks were normal. went to the dermatologist he put me on doxy 100 mg and also  prescribed clindamycin...within a week the difference was very noticeable. i stopped the clindamycin  because it was drying my skin out. so now i use just a topical salicylic acid in the morning  and benzoyl peroxide sometime at night and my skin looks amazing. i&#039;ve only been on it for a month.  only thing left is the hyperpigmentation which hopefully will go away soon. stick to it. it works."