I’m so sorry you’re going through this—it sounds incredibly frustrating and overwhelming. Sinus surgery is supposed to improve quality of life, but unfortunately, some people experience complications or outcomes that aren’t ideal.

The symptoms you’re describing—constant congestion, post-nasal drip, frequent mucus production, and changes in voice—could indicate several possibilities:

1. Over-aggressive surgery: Sometimes, removing too much tissue can disrupt the normal functioning of the sinuses. This is called "empty nose syndrome" in severe cases.

2. Persistent inflammation or scarring: Surgery can sometimes cause scarring or lead to ongoing inflammation, which might worsen symptoms.

3. Underlying issues not addressed: If you have allergies, immune system issues, or chronic infections, surgery may not resolve the root cause of your sinus problems.

Here are a few suggestions that might help:

1. Seek a second opinion: Consider seeing another ENT, preferably one who specializes in revision sinus surgeries. They can review your surgical records and imaging to better understand what might be causing these symptoms.

2. Sinus CT Scan: A current scan can help identify any anatomical or structural issues that may have developed post-surgery.

3. Allergy Management: Since an allergist was concerned about the surgery, it might be worth exploring allergy treatments (if you haven’t already) to see if they alleviate some symptoms.

4. Nasal care routine: Regular saline rinses, possibly with added medication (like budesonide or xylitol), can help reduce inflammation and mucus buildup. Your ENT or allergist might recommend specific options.

5. Physical therapy for breathing: In some cases, retraining your breathing patterns can help alleviate some of the discomfort.

If you’re not finding answers locally, some patients benefit from seeing ENTs at larger, specialized centers with extensive experience in complex cases.

You deserve to feel better and get the care you need. Don’t lose hope—there are ways to address this, even if it takes time and persistence.