I am a type 1 on an insulin pump, and for over a year now I've been getting a reoccurring rash on my chest neck and face. It will become extremely itchy when exposed to heat or when adgitated by clothing. I am taking antihistamines daily and they do help, but my doctor could not give me a diagnosis and said it could be linked with the diabetes. Had anyone's experienced anything similar? Wondering if I have a slight allergic reaction to my insulin, but surely if that was the case then the rash would be where my cannula is placed?