What it is
Most cases clear within a few days. Hives that keep coming back for more than 6 weeks are called chronic urticaria.
Antihistamines usually control the itch and rash. Other medicines are available for chronic hives.
Common signs
- Raised, itchy patches or bumps
- Patches that change shape and move around
- Red skin, or patches that look pink or skin-coloured on darker skin
- Swelling of the lips or eyelids, sometimes
How it is usually diagnosed
- Examination and questions about possible triggers
- Blood or allergy tests, sometimes
Records worth keeping
Keeping these together makes each appointment easier, especially when you see a new doctor:
- Photos of the rash
- Notes on possible triggers
- Allergy test results
- Medicines that helped
Questions to ask your doctor
- Could something be triggering my hives?
- How long should I take antihistamines?
- Do I need to see a specialist?
When to get help right away
Call 112 or go to the nearest emergency department if you have:
- Swelling of the tongue or throat, difficulty breathing or feeling faint: call 112, it may be anaphylaxis
This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.