In answer to your question it sounds that you have two separate issues (well 3 counting the glaucoma) The cholesteatoma of the ear is unrelated to the cyst development in your sinus. The sinus cyst is likely to block the normal drainage out of the sinus and IS likely to be related to the recurrent sinus infections. I hope this helps to clarify your situation. I'll be happy to address any follow up questions if you have any.
Best Regards, XXXXX XXXXX MD
Glad to be of help. The drainage you describe is post-nasal drainage. Your description of its character sounds like it may correspond with an infection. (By the way as docs we are very difficult to gross out so don't worry! ) You may help to thin out the drainage and help it to clear out by taking Mucinex (or other product OTC that contains guafenesin )and drink plenty of fluids.
Good Luck, Anthony Bray MD