Here's our head-to-toe advice for when CT scans and X-rays are needed—and when they're not. The problem: A severe headache may make ... stems from allergies or a sinus infection.
People often assume sinus pain means they have a sinus headache, Dr. Rashmi Halker Singh, neurologist and fellowship-trained headache sub-specialist at the Mayo Clinic in Arizona, tells TODAY.com ...
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