Eating banana rock candy does not relieve cough. Eating banana rock candy can fill hunger, can supplement nutrition, can supplement protein, fat, carbohydrates, sugar, crude fiber, calcium, phosphorus, iron, carotene, vitamin C, vitamin E, thiamine and other nutrients, but for the treatment of cough is not effective, eating banana rock candy as food can not be used as medicine. Cough has many causes, such as infectious factors, allergic factors, respiratory system tumors. Cough patients need to go to the respiratory department, if necessary, need to do sputum smear examination, chest X-ray examination, blood routine and other related examinations. Cough patients should not blindly use banana icing sugar to treat, need to promptly consult the standardized treatment.