When using this product, do not heat microwave add to hot water or any container where heating water. May cause splattering and result in burns. Ask a doctor before use if you have cough that occurs with too much phlegm (mucus) persistent or chronic cough such as occurs with smoking, asthma or emphysema. Warnings For external use only; avoid contact with eyes. Do not use by mouth with tight bandages in nostrils on wounds or damaged skin. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of accidental ingestion, get medical help or contact a Poison Control Center right away. Stop use and ask a doctor if muscle aches and pains persist more than 7 days or come back cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious condition.