Subcision, which I have successfully been using for thirty years, can be used to elevate and smooth chickenpox scars, much like it is used for this purpose in treating acne boxcar scars. And once, the scars are elevated, professionally performed Dermastamp microneedling (no need for the added expense and risks of RF microneedling) accompanied by the use of Rx topical pigment enhancers can be used to better blend the surface texture and color of the scars with the surrounding normal skin. I am not at all surprised by your lack of success with light-based treatments, as the hard science to back up their use lags well behind the marketing hype and social media buzz to promote them. Sorry. I am also not surprised by the lack of success with TCA CROSS, since this technique, which I have been using for twenty-five years, is best reserved for treating ice pick scars and dilated pores, rather than for more broader based scars, such as acne rolling and boxcar scars and chickenpox scars. Once again, sorry. Finally, I always caution my regular followers about the use of strong, full-face pulls out of concern for the higher risk of complications, such as persistent redness or other dyspigmentation problems that are well-known potential complications of this form of treatment. So, again, sorry. You would be well-advised to consult with an experienced, board certified cosmetic dermatologist scar treatment specialist who can both help to treat your scars and to advise you on proper treatments for diminishing the post-peel redness issue you are having. You would also be well-advised to exercise going forward a very healthy dose of "buyer beware" when being offered any of the expensive, supposedly "next big thing," here-today-gone-tomorrow, light and energy-based devices out there for the reasons mentioned above. Hope this helps and best of luck.