Which symptoms of a sinus infection will OTC cold medicines alleviate?

Multiple. Otc cold medicines can alleviate almost every symptom: -pain/pressure (acetaminophen, ibuprophen) -congestion (phenylephrine, pseudoephedrine) -drainage (antihistamines) i would look directly for these ingredients to see what you are targeting. If not improving, an prescription antibiotic would be needed for the infection.

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