I have a fizzing in the left side of my head...I have had one sinus infection after the other and found out I also have allergies.  There is pain in my left eye...I always seem to have my left nostril clogged...I have used different meds, allergy, sinus spray, etc. but it keeps coming back....I have tinnitis, but this other fizzing is driving me crazy.Can there be something other than just allergies or sunusitis?
Healthier is a fizzing on the left side, left side nasal blockage, heaviness or pain in the left eye. These symptoms may be due to these reasons, these include.1 Nasal septum deviation on left side. Diagnosis can be confirmed by X-ray of nose of the effected part. As this is a classical feature of nasal bone deviation that it causes blockage of nose, and fizzing sound .2 Acute bacterial rhinosinusitis (AIRS). Symptoms includes, nasal congestion, facial pressure and or pain (if unilateral & focussed on one sinus as may be on LEFT SIDE in your case) , post nasal Chat Doctor. 3 Allergic bronchitis (maybe early stage of asthmatic allergic bronchitis) . Diagnosis can be confirmed by physical as well clinical examination. Deal as mentioned above. Good luck.