I was prescribed retin-a 0.1% strength. I was given this as I apparently have over active oil glands and hormonal issues since I break out on my chin. Ive only been using it once a week for about a month and a half because my skin is really sensitive. I broke out really really bad 2 weeks ago (worst I ever have), had to get steroid injection because it was so inflamed and she said to continue the Retin a. Plus the BP wash she gave me and an antibiotic. I used the Retin a again but I just feel like I am breaking out worse than I ever have and I dont know if its from that or if it would have happened anyways and I feel discouraged from using this product anymore. I want to quit it but I dont know if its the cause or not... any thoughts? I dont know if its worth it even if its a purging phase as I only got 1 once in a while now its been continuously a new pimple (cyst like) for the past 2 frickin weeks