8. A Persistent Cough or Hoarseness
A cough that does not improve, unexplained hoarseness, or persistent changes in your voice may result from allergies, reflux, infections, or other conditions.
If symptoms persist for several weeks, worsen, or occur alongside coughing up blood or unexplained weight loss, seek medical advice.
9. Difficulty Swallowing
Persistent difficulty swallowing food or liquids, a sensation that food gets stuck, or pain when swallowing should be evaluated.
Possible causes include reflux and esophageal disorders, although difficulty swallowing can sometimes be associated with cancers of the throat
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