Make an appointment with an Ear, Nose and Throat asap. I had ear infections frequently when I was younger. They have the equipment to remove wax quickly and painlessly. If you have an infection you will need antibiotics in the form of ear drops.

I developed Scarlet Fever once by attempting to unblock it myself. If any liquid gets trapped that can be the catalyst for infection.

You have enough issues going on with the CRPS. I get it. It seems like the hits keep coming. Feel better soon.