I have a sore on my ankle and I suspect it is a diabetic ulcer. It started as one ulcer and then morphed into 5 more which have now become one large very very painful sore. I have been treated by my family doctor with antibiotics. It became less painful while and after I was on the medication. But now 6 weeks later it is becoming painful again and seems to be becoming larger again. It is extremely painful when I go to bed. It seems like the warmth of the blankets makes the pain worse. It is covered with a bandage all the time. But my concern is that there is a black spot forming on the sore. I am taking naproxen for pain at night.There is a lot of yellow/ pinkish drainage.I am 67 years old.And have been diabetic for 31 years, but it is well controlled. My last three month average (can t remember the name of the test,,,AC something I think) was 6,9.