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Itchy red bumps that come and go
jessicalw28 posted:
For the past week or so, I have been getting itchy red bumps that come and go. They look like mosquito bites, but are in clusters of 10-20. They have been on my elbows, knees, thighs and tops of my feet. They usually pop up in the morning and late at night. They get better within about an hour if I put hydrocortisone cream on them or take Benadryl. They pop up in different places each day. Does anyone know what this could be. Is it hives? I have not ever experienced symptoms of allergies before. I have not used any new detergents, soaps or lotions. I am wondering if it is possibly a food allergy. Can a food allergy happen all of a sudden. I also have some of the atypical symptoms of Celiac disease (anxiety, mouth ulcers, irregular periods, frequent gas, chronic heartburn, bruising easily, eczema), but am not sure if this rash is dermatitis herpetiformis because it is not painful.
An_207187 responded:
it sounds like cholinergic urticaria, which is a skin reaction to stimuli such as heat, cold water, sudden change in body temperature, it also can be caused by stress. Usually you'll break out in hives for an hour or so, if benadryl makes you too sleepy, and you get the hives at the same time every day, take claritin to prevent them. I've had this problem for ten years, it started out of no where when i would exercise. I've been to a bunch of doctors and the most i've gotten is some allergy medicine. good luck.

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