The main causes of swelling and pain on the right side of the mouth are trauma, mumps and boils.
1. Trauma: If the right side of the cheek bumps into a hard object or is hit by a blunt object, causing the subcutaneous capillaries of the right side of the cheek to rupture, resulting in subcutaneous hemorrhage, which can cause swelling and pain.
2. Mumps: When the mumps virus infects the right parotid gland, the virus blocks the salivary gland ducts, causing saliva to pool in the salivary glands, which can lead to swelling and pain in the parotid gland.
3. Boils: If the skin at the right cheek is infected by Staphylococcus aureus and triggers a boil, the pathogenic bacteria stimulate the local capillary permeability to increase, which can cause swelling, and when the inflammatory cells infiltrate the local nerves, it will cause swelling and pain.
There are other causes of swelling and pain on the right side of the mouth, you must go to the hospital in time to find out the cause of the disease, and actively cooperate with the professional doctor’s treatment.