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09/10/09 10:00 PM

"Is there such a thing as allergic reactions to Fast acting insulin such as Humulin R or Humulog"
Asked By: allisonb  
Category: Type 2

Background Info Hide
My mom has been on 2 fast acting insulins and twice now she has had lower calf ulcers errupt on her leg. I have checked all over the internet to see if anyone else has had the same reactions and so far no luck. Her diabetic dr says there's no such thing but I truly believe there is because this has happened twice now and the only changes in her medication have been taking Humulog and Humulin R and the dr have stopped these insulins. She is on lantus and since the increase in her lantus it has finally evened out her blood sugars. I have even tried the Mayo clinic, Stanford, and any other hospital or medical science venue I can think of and have found nothing on allergies like hers. They start as itching all over but mainly on the legs and then these two little spots that look like bug bites start then they get bigger and bigger. then the spots will move from the back of her calf to the front and it takes forever for them to heal so any ideas you might have for me I appreciate. Thank you

Expert Answers (2)

03/02/10 11:45 PM

Calf ulcers, known as necrobiosis lipoidica, can occur as a result of poorly controlled blood glucose. Generally seen in the lower extremities, they are most common in women who have diabetes. They are often recurrent and are best treated by use of exceptionally tight blood glucose control.
Answered By: Claire Blum
Accreditations: MS Ed, RN, CDE, CPT
Sources Show
10/08/09 12:05 AM

Dear Allisonb: The reaction you listed is not documented, as you have ascertained by your extensive independent research. I believe the best thing your mother can do is visit a qualified dermatologist to get to the bottom of this condition. Elevated blood glucose can certainly exacerbate any type of condition or infection, so it is good that her numbers are becoming more stable. Continued good control and accurate diagnosis of the skin condition are important for her well being and future health. Good luck.
Answered By: Anne Carroll
Accreditations: RN, CDE
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*** All information contained on dLife.com is intended for informational and educational purposes only. Our Expert Q&A is not intended to be a replacement or substitute for consultation with a qualified medical professional or for professional medical advice related to diabetes or another medical condition. Please contact your physician or medical professional with any questions and concerns about your medical condition.

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