I just received the prescription today- very little information g...

I just received the prescription today- very little information given by the doctor- so I looked up some information and found this site. I am most worried about side effects and many say this makes acne worse for up to a month before it gets better or has no result. I am desperate to get something that works- I am 38 years old with some health challenges but acne is controlling my life- its terrible. I am not on medication now -other than Duac Topical Gel and Retin A Micro for Acne- but I am seeing next month a reheumatalogist next month for RA ( has also gotten very bad in the past two months - Aleve not working anymore - ) also my internist wants to have my thyroid checked again and also an ANA LUPUS test redone- was negative last year but she feels its Lupus.