If your mucus is super runny
You could have a very rare condition called a cerebral spinal fluid (CSF) leak. This is when spinal fluid leaks through a hole in the skull bone and out into the nose or ear. “If it tastes salty and is as runny as water, it’s often misdiagnosed as an allergic reaction or seasonal allergies when in fact it’s a leakage of fluid around the brain,” says Dr. Iloreta. But don’t panic—while CSF leaks can occur spontaneously, they’re usually the result of trauma or surgery.
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