All the questions you have raised are appropiate to your present complaints
1.Alcohol is a potent vasodilator and thus it causes increased congestion, apart from this prolonged usage of alcohol is known to cause degenerative changes in nerves leading to sensorineural hearing loss
2.Taking a decision on quitting alcohol is a welcome deecision for many reasons and it will surely help in bringing about a reduction in your complaints.
contains a nasal decongestant, on prolonged usage these drugs are known to cause what is known as rebound congestion also known as rhinitis medicamentosa
. If you have been using this medication for a prolonged period i recommend you discontinue them in consultation with your doctor.
4.Most nasal sprays meant to be used for decongestion have more or less the same combination of drugs and are hence not recommended for prolonged usage.
5. Cigarette smoke is a potent irritant and will worsen nasal congestion