I have post nasal drip, and it has got in worst in the last couple of month, in the last week i see a little bit of blood coming up in my mucus. ?

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.