Stop use and ask a doctor if symptoms persist. Warnings Do not use if you have ever had an allergic reaction to this product or any of its ingredients. Ask a doctor before use if you have heart disease thyroid disease trouble urinating due to an enlarged prostate gland high blood pressure diabetes. If pregnant or breast-feeding, ask a health professional before use. Keep this and all drugs out of reach of children. If swallowed, get medical help or contact a poison control center immediately. When using this product do not use more than directed. do not use more than 3 days. Use only as directed. Frequent or prolonged use may cause nasal congestion to recur or worsen. temporary discomfort such as burning, stinging, sneezing, or an increase in nasal discharge may occur. use of this container by more than one person may spread infection.