Constipation, along with mouth ulcers, can feel very uncomfortable, and when a medicine like Dulcolax is not working, it usually means the bowel is quite sluggish, or the routine factors like diet and water intake are not enough to support normal movement. Constipation often improves more with a combination approach rather than only a stimulant laxative. Increasing daily water intake, adding fibre-rich foods like fruits, vegetables, and whole grains, and maintaining a regular morning toilet routine can help improve bowel regularity. In some cases, doctors may switch to a different type of laxative, like stool softeners or osmotic agents, which work more gently and are better for longer use. Mouth ulcers often happen due to acidity, vitamin deficiencies like B12 or iron, stress, or irritation from certain foods, and they may heal slowly if constipation and diet are not balanced. Keeping hydration good and avoiding spicy or acidic foods can reduce irritation. If both problems are persistent, it is better to get evaluated because ongoing constipation with ulcers may sometimes indicate nutritional deficiencies or digestive imbalance that needs targeted treatment rather than repeated laxative use.