Submucous fibrosis is a long-term condition in which the inner lining of the mouth becomes stiff and tight, gradually making it difficult to open the mouth properly. It is often linked with chewing areca nut, gutkha or tobacco, so the most important step is to completely stop these habits. Continuing them will make the condition worse over time. Treatment usually focuses on improving mouth opening and reducing stiffness. Regular mouth stretching exercises are very important. You can gently open your mouth as much as possible several times a day, gradually increasing the effort over time. A dentist or oral surgeon may also guide you with specific exercises or devices to help improve movement. A doctor may prescribe medicines such as vitamins, anti-inflammatory tablets, or other supportive treatments. In some cases, injections are given inside the mouth to reduce tightness and improve flexibility. If the condition is advanced, a minor surgical procedure may be needed. Eating soft and non-spicy food can help reduce discomfort. Regular follow-up with a dentist is essential to manage the condition and prevent progression.