There are many causes of blistered and swollen lips, such as trauma, burns, herpes, contact dermatitis, drug rash and other causes.
1. Trauma: Lips that are irritated by external pressure, bumps, car accidents and other stimuli may cause symptoms of blistered and swollen lips.
2. Scalding: Scalding by too hot food or gas can also cause symptoms of blistered and swollen lips.
3. Herpes: Herpes caused by a viral infection can also cause blisters, ulcers, rashes and other symptoms that lead to blistered and swollen lips.
4. Contact dermatitis: contact dermatitis caused by the use of lipstick, cosmetics, skin care products and other stimuli can also lead to blistered and swollen lips, itching and other phenomena.
5. drug rash: local use of drugs or systemic use of drugs caused by allergic reactions, can also lead to the symptoms of blistering and swelling of the lips.
Lips blistered and swollen, there may be other reasons, need to go to the hospital in time to check.