Facial swelling on the left side of your mouth without pain could have various causes. Some possibilities include: Salivary gland issue: Swelling may occur if there is a blockage or infection in the salivary gland on the left side. This can lead to the accumulation of saliva and subsequent swelling. Dental infection: An infected tooth or gum can cause swelling in the surrounding area. However, it is usually accompanied by pain or discomfort. Allergic reaction: Swelling could be a result of an allergic reaction to certain foods, medications, or substances that come into contact with your mouth. Cyst or tumor: In rare cases, a cyst or tumor may develop in the oral cavity, causing swelling. These typically require medical attention for diagnosis and treatment. Given that the swelling has persisted for 2-3 years without pain, it is important to consult with a healthcare professional, such as a dentist or oral surgeon, for a proper evaluation. They will be able to examine your mouth, review your medical history, and possibly order additional tests or imaging to determine the cause of the swelling.

Go for opg xray Maybe your wisdom tooth is impacted.

Please kindly upload the picture of swelling region it will help us to evaluate correctly.

2/3 year old swelling without pain ! Following things need to evaluate thoroughly 1. The region where the swelling is Upper or lower face and it's extension 2. In front region or back side like below ear 3. Any history of trauma or injury if you remember 4. Consistency, whether it's hard, firm or soft

Please visit a local dentist for physical evaluation and treatment (if required).

Hello Plz attach photographs.may be it Is bony growth

Hi kindly attach snap and give history of swelling