I have been using tretinoin 0.1 gel on my thighs, face and chest. My skin became flaky and started to peel. I scraped the peel off and was left with sticky and shiny skin. Not that my skin was oily but was hella glassy. The next time I applied tretinoin I woke up with crazy itching and redness. I want to ask if this is normal and if not will it cause scarring or hyperpigmentation?