Coughs that cause sore throats can be relieved by eating a little more fruit such as oranges and pears. You should also pay attention to drinking more water to avoid a dry cough. Next, you should look for the cause of the cough and treat it according to the cause. There are several common causes of cough: cough caused by cold, allergy, bronchitis and asthma. Coughs caused by colds are the least symptomatic, shortest in duration and the easiest to treat, and can be treated by taking oral licorice tablets. Allergic coughs need to be kept away from allergens and should be taken to the hospital as soon as they are detected. Coughs caused by bronchitis need to be controlled for inflammation, which is the only way to treat the cough. Asthmatic cough should be avoided by avoiding overly severe environmental as well as emotional stimuli, which can effectively relieve cough symptoms.