Sinus Infections That Don't Quit: When You Should Worry

It's rare, but an untreated sinus infection can turn into a serious problem. Here’s how long they typically take to clear up and what can happen if they stick around too long.

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What causes sinus problems and how to find relief

Sinus Infection vs. Cold: How to Tell the Difference

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The link between sinus infections and bronchitis

My Sinus Headache Won't Go Away: What to Do

Mayo Clinic Q & A: Chronic sinusitis symptoms resemble a cold, but

Sinus Infection Signs & Symptoms + 10 Natural Remedies - Dr. Axe