ELI5. How do cold medicines like codral unblock your nose when you are sick? I’m asking this as someone who took codral 30 minutes ago and can suddenly breathe through both nostrils.
In: Biology
One of the most common decongestants is pseudoephedrine. It causes vasoconstriction and relaxation of smooth muscle. It makes the blood vessels in your sinuses, throat and lungs constrict. This constriction causes less fluid to leave the blood, reduces inflammation and decreases mucus production.
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