Angioedema Lips: Why Your Lips Swell and What to Do
Lip swelling is one of the most common sites for angioedema. It often develops over minutes to hours, may feel tight or tingly, and typically fades in one to three days. The key question is whether the swelling is spreading to the tongue or throat.
Common Causes
- Food or medicine allergy
- ACE inhibitor medicines
- Hereditary angioedema
- Insect stings
- Dental procedures or trauma
- Chronic or idiopathic angioedema
See angioedema causes.
What to Do if Your Lips Swell
- Stop eating or using the suspected trigger.
- Check for tongue, throat or breathing symptoms.
- If symptoms are mild and breathing is normal, take a non-sedating antihistamine and contact a doctor.
- Use epinephrine if prescribed and call 911 for severe symptoms.
Lip Swelling Vs Other Conditions
Cold sores, cheilitis, dental infections and injuries also swell lips. Hives on the lips may be less deep. See hives on the lips.
When to Call 911
Call 911 right away if hives or swelling occur with difficulty breathing or swallowing, a tight or closing throat, a swollen tongue, lips or face, wheezing, faintness, or a sudden feeling of impending doom. Use an epinephrine auto-injector first if one has been prescribed to you, then call for emergency help.
When to See a Doctor
See a doctor if your symptoms last more than a few days, keep coming back, cover large areas, or interfere with sleep or daily life. The Hives Treatment Center in San Francisco, founded by Dr. Tiffany Young, is a dermatology practice dedicated to hives and related conditions, and is accepting new patients.
Related Reading
You may also find these guides helpful: angioedema and angioedema treatment.
Frequently Asked Questions About Angioedema of the Lips
How long do swollen lips last?
Usually one to three days.
Can lip swelling be an allergy?
Yes, particularly if it follows a food or medicine.
Do I need to stop my blood pressure medicine?
Never stop it on your own; call your doctor promptly.
Get Relief for Your Hives
Repeated lip swelling is a reason to see a specialist. Visit our hives treatment page to see the latest treatment options for your outbreak.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. If you think you are having a medical emergency, call 911.
