Antihistamine
If your nasal congestion is triggered by an irritant which results in an allergic response, antihistamines would be particularly helpful in alleviating the condition. Keep in mind that those drugs would cause drowsiness, so avoid taking them if you are going to drive a vehicle or going out and do some physical activities. Also, do not go for this remedy when you are breastfeeding. They might irritate your babies and reduce breast milk flows. [7]
