I had the ear fluid drip issue with the AirPods Pro after about 9 months of incident free usage from new. Have tried below after recovering from the bouts of ear fluid drain.
1) Using wife's AirPods Pro - Fluid drain persists
2) Using aftermarket sleaves for the pod housing and the the - Fluid drain persists
3) Using new replacement earbuds provide by apple due to connectivity issues - Fluid drain persists
Got Myself a AirPods 3 couple of days ago on 27th Oct 2021
I have got the fluid drain on the AirPod 3 again on the 29th Oct 2021
It may be worth noting that my AirPods were connected android phones and Mac book pro 2019 during the time it worked well for me. Once I switched to iPhone 11, 12 and MacBook pros 2019 I started experiencing the fluid drain. My daughter is now using my AirPods pros on android phone and Mac book pro 2012 and she does not seem to have any issues with ear fluid drain. My wife using AirPods pros on iPhone 11 also has the itching, scabbing shedding and fluid drain when using AirPods pros. In both our cases it has been happening over several firmware updates and after a couple of hours of usage every time.
In my opinion the issue is not isolated to AirPods pros not its silicon ear tips, I suspect it has to do with the plastic material or more so the signal radiation itself when connected to iPhones. On my 4th attempt with 3 different devices I give up on apple AirPod line.