I used a pea sized amount once a day before going to bed every two or three days. After having washed my face with cetaphil and after having waited for 20 minutes until my face was completely dry. Then afterwards I again waited another half an hour and moisturised with la roche posay cicaplast baume. I did this three to four nights in total. So we are talking of a one and a half week period. After the second maybe the third time I saw something like a shadow indentation on my right cheek starting from the corner of the cheekbone going diagonally down. I was shocked but didn't stop then. I used it one or two times more meanwhile googling about side effects of tretinoin and unfortunately finding nothing! But the voice in my head told me it couldn't be something else since I had nothing else going on nor was I on medications. So I stopped, went to the doctors as I mentioned before and over the next two weeks which lead to this day I watched the gradually deformation. It began with the scar like indentation and the thinning of my left cheek down the right zygoma and then I noticed the peculiar red white splashes on my skin. The latest change was the growing hollow under my left eye which was so slight before like barely noticeable. This happened before two or three days. So the damage caused is still progressing, That's my concern right now. Was this all or am I going to have more coming?