"i&#039;ve been on claravis for 15 days today, and so far there is no improvement. after about 10 days of use, i broke out very badly. everybody that&#039;s saying they&#039;ve already improved after a week or two couldn&#039;t have had very bad acne to begin with. the doctor said that results won&#039;t start appearing at all until at least 3-4 weeks, but at this rate, i don&#039;t think i&#039;ll be seeing any soon. i have pretty severe acne, and have ever since 7th grade (i&#039;m a senior now). my side affects at this point are very dry skin - particularly the nose, mustache area, chin, and lips - i have slight muscle aches in my back and neck that i didn&#039;t have before, and i&#039;ve been getting an abnormal amount of bloody noses since i started (at least twice a day.)"