I applied 17% Salicylic acid wart remover on Pimples. It turned my skin into dark black burned spot. How can I treat it? (Photo)

Hello! It looks like the wart remover caused a chemical burn leaving some post inflammatory hyperpigmentation. I would suggest using a petroleum gel like Vasoline or Aquaphor until it heals. It is possible that a dark spot will remain so I would suggest using a product with hydroquinone or kojic acid to help lighten any hyperpigmentaion left behind after it heals. We hope this helps!