Have maxillary sinus cyst, hurts at times,using nebulize ampho b. had allergens test revealed ige mucor racemosus of 0.11. could this be mucormycosis?

Unusual: Most sinus cysts do not cause symptoms although it may potentially impede sinus drainage -> sinusitis if present near the sinus opening (cancer is unusual ) and unusual to cause pain. I would recommend that you consult an ENT. A positive IgE test to a mold alone is not correlated with the presence of fungal sinus infection. In many instances, these cysts may disappear with time.