If you’ve had hives for several weeks and don’t know why, see your doctor.
She’ll want to know:
She’ll also ask about the foods you eat and if you have pets to see if an allergy is to blame. She may check for other illnesses or conditions that could be causing the hives, like an overactive or underactive thyroid.
When and where they pop up
How long they last
Possible triggers
If you have swelling
What other symptoms you have
If you’re taking new meds