Hi doctor, i am suffering from severe sinus face pressure after switching on air conditioner in my room and if I take steam , I am getting some relief. It is a pressure without any sputum or congestion , if i blow nose , I can hear a tick tick sound from my nose . I have allergy problem and I am already taking fluticasone nasal spray sometimes. Sometimes this sinus pressure will become a headache and i have to take rest. Is it really cold air which is making me sick or is it a any allergent inside my room? I noticed that I am not getting much issue in my office ac.