That's bad and I'm sorry it happened!
That being said, we warn against the over-use of Tretinoin in many places on our site. .
In the description of the product in our shop, we say that a pea size amount of cream is enough for the entire face and that the skin may start peeling.
The chapter about Tretinoin in our 34 pages dermarolling instructions says:
"
Only a pea-size amount of gel should be used to spread on the entire face. Using more may cause irritation and redness.
Tretinoin will likely make your skin peel. "
A downloadable leaflet in the support section on our site about the cream also explains how to use it.
A forum thread explaining the basics about Tretinoin:
https://http://forums.owndoc.com/dermarolling-microneedling/questions-about-our-three-a-ret-creams/ I understand that you did not want to waste the cream but concerning Tretinoin, the more is not the better.
The redness and peeling are only temporary and it will go away.
Take a cotton pad, sprinkle it with tap water, add some oil and apply it regularly on your face. This may slightly diminish peeling.
Keep it moisturized.
Yes, you can wear makeup but you must apply something very moisturizing under the make up to avoid the drying out of the makeup.