well from my experience.. i had the same problem of blood coming out of my mouth after coughing and sneezing. I consulted the doctor and she told me that the capillaries in my throat had burst due to my coughing and it had to do very little with my lungs. She told me that the my coughing was rough and hard so it damaged my capillaries and if you dont have any mucus or flem coming out of your mouth.. you have some serious problem..
it could be dure to drug reaction or side effect for some mucolytics
Usually means some sort of infection.
gingivitis
You don't taste or smell 'blood', your coughing may irritate your lungs and the irritation may have you taste what you think is blood. As for the smell, you could be smelling the flem. The flem gets that kind of smell after being to much of an irritant to your lungs or throat.
Blood tastes metallic :L so it could be that :P
blood
A taste of blood in the mouth has often been described as metallic. There are several reasons why your mouth might taste like blood, such as certain medications, poor dental hygiene, excessive iron in the body, peptic ulcer and kidney disease.
That taste is sulphur.
What medications cause a salty taste in the mouth? My doc put me on Indapamide, which is a diuretic. I developed a terrible salty mouth and had to stop it.
No. Postnasal drip leaves a great taste in your mouth.
A metallic taste in your mouth will very likely come and go. The metallic taste most likely comes from blood in the mouth and will heal quickly.
cyanide
Yes
Yes.