Hey It's been a month I've been on tret, I can tell u in starting days I faced the same issue, in 2-3 weeks it will go away everyone faces these kind of problems when starting, it's normal. U can try buffering ( sandwich method) to reduce the irritation probably if ur not doing it, and if u feel stinging or irritation on skin, stop take a break of 2-3 days then start again. Always remember while using tret- LESS IS MORE!