Hello to all people of this forum. I have joined this forum for advice for my mother who is 67 years old and was diagnosed with type 2 diabetes about 3 years ago. On all of her review appointments the Hbac1 readings have been within range and even good. Fast forward to last week and my mother woke in the morning with what seemed like a normal little blister on her foot near the heel but over the next few days it seemed to get larger with a red sort of ring around it. Due to my concerns of her having diabetes and 2 years earlier having suffered from sepsis due to a chest infection i decided to call 111 and they sent out a doctor to check things over. he took a look checked her temprature etc and said it was just a normal blister and there was nothing to worry about it would be gone in a few weeks. Upon asking him if it was diabetes related he asked how the blood sugar control was and when i said it was within range he said he did not think it was related to the diabetes at all. The reason i am asking here is because moving on 3 days from that doctors visit the blister has now turned purple/black looking and i am increasingly worried bu i do not know iff i am worrying un necasarily and this is the normal way a blister heals. I dearly hope someone can advise on this matter and thank you all for reading. I have tried to upload pics but unsure iff it worked.