Sinus infection: It depends on how long ago you had an adenoidectomy. If it was a few weeks ago, it can still be from surgery. If it was years ago, it could be sinus infection, infection of the tissue in the nasopharynx (nasopharyngitis), or sometimes a cyst in the area called a thorwaldts cyst. Tumors could also be the problem. You need a good exam by an ent, he/she can use a telescope to look back there.
Answered 11/24/2016
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A doctor has provided 1 answer
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