A cough lasting about a week, along with chest pain during movement, is often due to strain on the chest muscles from repeated coughing. When you cough frequently, the muscles and joints of the chest wall can become sore, causing pain when you move, twist, or take deep breaths. This type of pain is usually not related to the heart and is commonly seen with respiratory infections. The cough itself could be due to a viral infection, throat irritation, or mild bronchitis. In most cases, it improves gradually with time. However, if the cough is persistent, produces thick mucus, or is associated with fever, it may require further evaluation. Medicines for cough or infection should be taken only if advised by your doctor based on your symptoms. For now, take adequate rest, stay well hydrated, and avoid cold or irritating foods. Steam inhalation may help relieve cough, and gentle movements can reduce stiffness in chest muscles. If you notice severe chest pain, difficulty breathing, a high fever, or symptoms that persist beyond a couple of weeks, consult a doctor for proper evaluation.