I have had a rather persistent cough for about a month now . i get a bloody/metallic taste in my mouth often once i cough. i do not see any blood though.?

Need to see Doc.: Chronic cough can be related to allergic rhinitis, post nasal drip, chronic sinus condition, chronic bronchitis, gerd, bronchial asthma, bronchiectesis. Try saline nasal irrigation. Avoid cigarettes smoking. Need evaluation by physician, preferably lung specialist to work up chronic cough if clinically necessary.

See your doctor: Please see your doctor. This could be a symptom of something serious such as cancer. There is in way of knowing what your symptoms may be indicators of without a clinical exam. Take care...

Needs workup.: It might be because of several causes, the main ones being medicines like ACE inhibitors, acid reflex, and COPD. Also if you are from or have been to a country where Tuberculosis is prevalent, you might need to be tested for that.

Vague: Recommend that you see a Dr. asap and get tested and evaluated. Month is too long to have these symptoms- could be allergies