Frequent mouth ulcers, especially when many ulcers appear throughout the mouth at the same time, can be very painful and may occur due to several reasons other than constipation. Common causes include stress, lack of sleep, acidity, vitamin deficiencies such as low vitamin B12, iron, or folic acid, food allergies, poor nutrition, dehydration, hormonal changes, or irritation from sharp teeth or dental problems. In some people, repeated ulcers may also be linked to immune-related or stomach-related conditions. Since your ulcers occur frequently and sometimes involve the whole mouth, it would be important to identify the underlying cause instead of treating only the pain each time. To help reduce ulcers and discomfort, avoid spicy, sour, salty, or very hot foods, and drink plenty of water. Maintain good oral hygiene with a soft toothbrush and avoid tobacco or smoking if applicable. Warm salt water rinses may help soothe the mouth and keep it clean. Ulcer gels may provide temporary pain relief, and vitamin supplements may help if nutritional deficiency is contributing to the problem. Try to maintain regular sleep, reduce stress, and eat a balanced diet rich in fruits, vegetables, and proteins. Since your symptoms are frequent and severe, you should consult a physician, dentist, or ENT specialist for proper evaluation. The doctor may advise blood tests to check for anaemia, vitamin deficiency, or other medical conditions. Seek medical attention promptly if the ulcers last more than 2 weeks, cause difficulty eating or swallowing, or are associated with fever, weight loss, or swelling.