A 26-year-old male asked:
whenever i get hot i start to itch, i had hives prior but they're gone i'm currently on zantac (ranitidine) and zyrtec (costco brand). it doesn't seem to work.
1 doctor answer
Dr. John Chiu answered
56 years experience Allergy and Immunology
Cholinergic ?: There is a condition known as cholinergic urticaria (small bumps) which occurs during the cooling down period after a rise in core body temperature (hot shower, exercise, stress etc). If this fits your pattern, then try taking the antihistamine up to every 8 hrs to see if this may work.
Answered on May 31, 2019
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