These external nasal dilators are completely safe. They physically pull your nasal passages open from the outside. They won't stop the swelling, but they will mechanically create an airway.
Many standard decongestants are Category C drugs , meaning animal studies have shown risks, and human studies are lacking. Pseudoephedrine, in particular, is linked in some studies to a small increased risk of abdominal wall defects (gastroschisis) if taken during the first trimester.
The Pregnancy Stuffy Nose No One Warned You About: Understanding Nasal Congestion in the First Trimester
Lean over a bowl of hot water with a towel over your head (careful with the bump!) or just sit in a steamy shower for 10 minutes. The warmth shrinks blood vessels temporarily.
