There are many reasons for the swelling of the mouth, such as trauma, allergies, infections, mosquito bites and so on.
1. Trauma: external pressure, bumps, falls and other factors can cause soft tissue congestion, edema, which can lead to the phenomenon of swollen mouth.
2. Allergy: taking or contacting certain foods, drugs, cosmetics, skin care products and other sensitizers, causing an allergic reaction, can also lead to swelling of the mouth.
3. Infection: local skin, soft tissue, or neighboring organs, by external bacteria, viruses, fungi and other pathogenic bacteria caused by the infection of the inflammatory reaction, can also lead to swelling of the mouth.
4. Mosquito bites: the mouth by mosquito bites, toxin stimulation can also cause the mouth will be swollen.
The mouth will be swollen, there may be other reasons, you need to go to the hospital in time to check, clear cause of treatment as prescribed by the doctor.