After approx 70 days of use my daughter had burning sensations on her face caused by ProActiv Acne Solutions.in addition, there was swelling on her entire face as if it was a bee sting allery (which she does not have). After the burning sensation was finally gone, about 16-20 hours later (and the purchase of allergy medication for swelling) we thought we were out of the woods, but then the blisters appeared. I hope they do not scar, although healing is still in progress, and the Rep #223406 (I could not understand her name at the time and it took 3x asking to get the rep #) at Proactive told me that I should have her see a dermatologist. Thanks for the lack of help to the company and the representative who was little to no help for me on the phone. I have almost two months of unused product and obviously not suggesting this to any of my friends and family.