I have an indent on my left side of face/cheek that keeps getting bigger. What causes this? How can it be fixed? (Photo)

You have a number of options.  Assuming that there is nothing medical going on (and we'd determine that when we saw you), we can fill that indent with injectable fillers, fat, or a permanent implant.You have several options.We'd also want to check your anterior sinus wall to make sure there is not a bone deficiency, but that too can be fixed. I'd expect you to be able to get rid of those problem to a large degree.

It appears that the acne has caused a large indentation in your cheek.  The best treatment at this point would be to have the area injected with a filler such as Voluma. Over time new collagen should form form the injections and help heal the area. Please consult an expert in cosmetic injections for the best results. Best, Dr. Green