Cold symptoms typically last seven days but may ... Stuffy nose Decongestants like Sudafed (pseudoephedrine) and Afrin (oxymetazoline) narrow blood vessels in the nasal passages.
Many popular over-the-counter cold and ... to help treat symptoms of common respiratory infections, such as cough, cold and flu." Sky News has contacted Lemsip, Beechams, and Sudafed for comment.