Cold vs allergies vs pregnancy rhinitis

How do the options compare?

This comparison weighs the symptom pattern, timing, and duration that separate a cold, seasonal allergies, and pregnancy rhinitis from each other.

• Cold symptoms usually peak within two to three days and travel in a group: runny nose, congestion, cough, sneezing, sore throat, headache, mild body aches, and often a low-grade fever, with more than 200 respiratory viruses capable of causing them. 1
• Pregnancy rhinitis is congestion with no infection and no allergy behind it, it affects one in five pregnant women, and no single cause has been pinned down. 2
• Pregnancy-induced rhinitis is frequently misclassified and under-recognized, and no single symptomatic approach has emerged as clearly best, which is why it so often gets mistaken for a cold that will not end. 3
• Second-generation antihistamines have strong evidence behind them for allergic rhinitis, while the older first-generation ones are no longer recommended because of their adverse effect profile, so a response to an antihistamine points toward allergy rather than hormones. 4
• Cetirizine has substantial pregnancy data: studies covering more than 1,300 exposed pregnancies did not show an increased chance of birth defects. 5
• Gestational rhinitis is nasal obstruction with no prior history, usually starting in the second or third trimester, lasting six weeks or longer, and resolving within about two weeks after delivery. Prevalence estimates range from roughly 9 to 22 percent of pregnancies, and the primary symptom is obstruction rather than the itch, sneezing, and rhinorrhea that mark allergic rhinitis. 6
• A common cold is a self-limiting infection typically lasting three to seven days and most contagious in the first two to three days, distinguishing it from seasonal allergies, which are recurrent and tied to specific allergens rather than a short-term episode. 7

Which option makes sense?

Company and duration, not the stuffiness itself, are what actually tell these three apart.

Disclosure: Pregnancy Smart offers a supplement that overlaps with one or more options above. This page describes the pregnancy evidence for each option on its own merits.