My sinuses are very clogged, please help!

I have had a sinus infection for the past 5 days and am having some trouble. I have finished my Z-Pak antibiotic and some of my symptoms have gone away. However, my sinuses are still very clogged behind my eyes and especially in my ears. My ears feel very clogged with fluids and it is very hard to hear. I have been drinking a lot of fluids, I have been using a humidifier, warm compresses, and have been taking Mucinex D. However, the pressure in my sinuses is not going away and is starting to give me bad headaches behind my eyes and around my cheek bones. Is there anything else I can do to get rid of all this pressure? Any help would be extremely appreciated. Thanks!