Hi
Welcome to the forum!
The symptoms of blocked nose, blood from nose (coming from one nostril) can be due to a foreign body, nasal polyps, bleeding hemangiomas (localized collection of blood vessels), habit of picking at the nose, a tumor or inflammation due to say a nose ring.
If there is a cough also then there is a chance of infection and sinusitis too. Rarely only nasal bleed can be due to a brain problem like a tumor.
Please consult an ENT specialist.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!
i have the exact same thing. i have only had mine for 2 weeks not. i also have a cough.