About one third of pregnant women experience varying degrees of nasal obstruction, sneezing and watering from nose during the pregnancy. Often noticed in the second trimester, it can increase in the last trimester. This is called Rhinitis of pregnancy. The harmone estrogen is responsible for this. The decongestant nasal sprays should be used only at the doctor’s advice. The sodium chloride or saline solution is a purified salt solution can be used as it moisturizes the nasal passages and loosens the thick secretions .