Methods of treating and preventing conditions of a nasal or paranasal mucous membrane are described. The methods include administering a pharmaceutical composition including a nicotinic acetylcholine receptor (nAChR) agonist, such as (S)-(l-methyl-2- pyrrolidinyl)-pyridine, or a pharmaceutically acceptable salt, analog, precursor or derivative thereof. The methods can be used to treat a wide variety of conditions of the nasal or paranasal mucous membrane, such as nasal congestion and nose bleeds.