My face has always been great as far as acne goes. Then, out of nowhere, this huge cyst/nodular acne became inflamed on my cheek. I initially thought it was just any other acne so I tried to squeeze it (bad idea!). That's when it quickly (overnight) inflamed to a huge red bump underneath my eye! I went to a derm and she gave me a cortisone shot after draining it. Now, what must be 8 weeks since this sucker appeared, it is still red (it is mostly flat now but some hardness can still be felt). The picture attached was taken a couple days ago.

This is what it looks like now. I texted this photo to my derm and she prescribed me Keflix/Cephaflixin (spelling is wrong).

Will this 10 day course of Keflix work? What is this thing beneath my eye? Is this even acne????