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warnings
Ask a doctor before use if you have a cough that last or it is chronic such as occurs with smoking, asthma, chronic Bronchitis or emphysema. Stop use and ask doctor if a cough lasts for more than 7 days comes back or occurs when fever, rash or persistent headache. A persistent cough may be a sign of a serious condition. If pregnant of breast-feeding, ask a health professional before use.