Brief Answer:
I would advise to do the CT scan too, to rule out a possible cancer.

Detailed Answer:
Hello,

Thank you for using Healthcaremagic to post your health query.
I read carefully your question and I understand your concern.

I agree with the doctors recommendation to do a CT scan.
Usually, the fluid behind the ear drum will be absorbed gradually and the pain will be better after treating the infection with the antibiotic.

But if they are not seeing improvement and if they see a growth formation, then it is important to see that in more details to rule out what it is. It may be just wax, but it may also be a cancer. And if it is a cancer it should be removed as soon as possible because if it spreads it may go to your brain very quickly, because the ear is very close to the brain.

Hope this is helpful and answers your question.
Let me know if you need more clarifications.

Regards,
Dr. Papaqako

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