Infection or allergy: a 50 year old male with post-nasal drip worsening in the last few moths, a bit of blood in mucus. Post-nasal drainage comes from nose and sinuses. When nasal mucosa irritated or dry, can cause minor bleeding which can then show up in mucus. Post-nasal drainage can be cause by an infection (like a viral cold) or rhinitis from allergies. OTC nasal steroid sprays should help. See PCP or allergist.
Answered 2/24/2018
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A doctor has provided 1 answer
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