<human>: . I am type 2 diabetic and gave my self a shot before bed. Woke up with a blister on my lower stomach right side. Felt it sore in the middle of night. Went in to urgent care and Docter lanced it. He burned my skin. Since than I have returned 3 times. It seemed to be healing but now it is purple around and cheesy looking in the middle. I have been swimming the last cole days.
<bot>: Hi, Perhaps the skin there has got infected. Central yellowish looking floor and surrounding redness are signs of it. Uncontrolled diabetes predisposes to skin and soft tissue infections. I suggest you to use an OTC topical antibiotic, e.g., either Newsprint Ointment or Mupirocin 2% ointment, twice daily for a few days.  In addition, I suggest you to take an oral antibiotic e.g., either Amoxicillin or Cephalexin, thrice daily for a week.  Hope I have answered your query. Let me know if I can assist you further.