I know its embarrassing or feels like it to leave the house, but you should see a dermatologist for this one. God forbid the hole gets infected, you need collagen.
If it was a healed cystic acne scar, id say apply witch hazel but since it is open, not the best idea to touch or put anything unless a doctor medicates it.
I’m not an expert, but that looks deep and looks like it could scar. definetly go see a dermatologist
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