My now 15 yr old daughter has used this product for about 17 weeks now. We went to the dermatologist because she started getting flesh colored bumps all over her forehead. Now the bumps are mostly gone but darkish spots are in their place (almost like scars) and overall her complexion is worse. Doctor wanted to give it 6 months -- I know there are mixed reviews on the "purge" timeframe but wanted to see if there were any experiences like ours?