A member asked:

Since dec when i go for brisk walk with my dog who is 10 same route my legs sting & red lumps and red areas appear this lasts3/ 4 hours. tonight some lumps came up also chest and arm. why am i getting hives been walking dog 10 years whats happening?

2 doctors weighed in across 2 answers

It is not feasible to provide a meaningful opinion without additional history, physical examination and may be some tests. What you are experiencing may be as simple as prickly heat due to warm weather and the exercise from walking. If the rash worsens, bleeds, or a discharge develops, it would be prudent to see a doctor. Wish you good health!

Answered 6/9/2022

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The cause of exercise induced hives and angioedema is very elusive. When this occurs, histamine & other substances are released causing the symptoms. Sometimes eating certain foods & then exercising causes the reaction. Look for triggers. . I recommend working with an allergist to deal with this problem. In the meantime taking an antihistamine may prevent or relieve these symptoms.

Answered 6/10/2022

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