Sore throat warning: If sore throat is severe, persists for more than 2 days, is accompanied or followed by fever, headache, rash, swelling, nausea, or vomiting, consult a doctor promptly. These symptoms may be serious.
•persistent or chronic cough such as occurs with smoking, asthma, or emphysema
•cough accompanied by excessive phlegm (mucus)
•cough persists for more than 1 week, tends to recur, or is accompanied by fever, rash, or persistent headache. These could be signs of a serious condition.
•sore mouth does not improve in 7 days or irritation, pain or redness persists or worsens