Hi Dear ,
Welcome to Health Care Magic Team.
Understanding your concern.
The symptoms
post nasal drip ,a month ling cold and pressure in nose and eyes as you mention in your query are pointing towards sinusitis .There could be many causes for sinusitis like cold ,nasal polyp,respiratory track infection ,deviation of
nasal septum and weak immune system due various diseases.
You should
consult doctor so that he can diagnose you properly to find out exact cause , he can review symptoms and take physical examination .Doctor can refer for CT scan and
blood test .
Treatment of the sinusitis depends upon the cause .If the sinusitis is due to bacterial infection then doctor can prescribe antibiotics along with antihistamines and decongestants which relives the symptoms like post nasal drip.Antihistamines(benadryl) are also effective if the causative factor is allergy.
If mucus is thick you can also use
mucolytic agent like ambroxol to make mucus thin which can be easily removed . Apart from this you should take steam twice a day which will give relief from congestion , also do warm saline gargles .
Hope your concern has been resolved.
Get Well Soon.
Best Wishes,
Dr. Harry Maheshwari