You really need to consult with a board certified facial plastic surgeon, plastic surgeon, or dermatologist. A TCA peel should be performed under the direction of a reputable physician with the proper training. Pre and post procedural care is extremely important for favorable results...
30% TCA is a mid level chemical peel. Scarring is rare, but can occur if there is any post-peel crusting, picking, or any delayed healing from Accutane use. Please see a board certified dermatologist or plastic surgeon ASAP to address this problem and prevent or at least mitigate the problem.
The results will last depending on how you take care of your skin after the peel. There are some excellent products, such as Obagi that have a great home system, including cleansers and moisturizer that can help make the peel's result last a long time. But equally important is sun exposure, be...
