Stop use and ask a doctor if cough lasts more than 7 days, comes back, or is accompanied by fever, rash or persistent headache. These could be signs of a serious condition. Sore throat warning: if sore throat is severe, persists more that 2 days, is accompanied or followed by a fever, headache, rash, nausea or vomiting, consult a doctor promptly. If pregnant or breast-feeding, ask a healthcare pro-fessional before use. Keep out of reach of children. In case of overdose, seek medical help or contact a poison control center immediately. Ask a doctor before use if you have persistent or chronic cough such as occurs with smoking, asthma, emphysema or chronic bronchitis.