Avoid the trigger if known

Stop any new non-essential medication or supplement and contact a clinician

Take an oral non-drowsy antihistamine as directed on the label or by a clinician

Use a cool compress on itchy areas

Take a lukewarm bath with colloidal oatmeal

Wear loose, soft clothing

Avoid heat, alcohol, and vigorous exercise if they worsen symptoms

Avoid scratching

Use a fragrance-free moisturizer if skin is dry

Seek urgent care immediately if there is trouble breathing, wheezing, throat tightness, swelling of the lips, tongue, or face, dizziness, or fainting

See a clinician if hives last more than a few days, keep coming back, or are severe