Ewa, I also have a tendency towards allergic reaction in my ear canals to foreign materials. While I tolerate the shiny, flesh-toned plastic molds very well, I have some irritation with my current, gray silicone power domes - and FORGET about wearing any clear or pink-tinted hard plastic “hypo-allergenic” mold in my ear.
My suggestion would be to buy a UV sterilizer to hold your aids in at night - something along the lines of this at Amazon. These small, travel-sized devices will kill all the bacteria that could be on your aids. In addition to which: WASH your hands before handling the aids and inserting them in your ear canal. In fact, I even bring alcohol wipe pads for service appt’s with my aud-guy. I love him, but he has a habit of wiping his nose, or putting a finger in his mouth and then passing me my AIDS. Crikey! I’m a bit of a germaphobe anyway, and why go looking for trouble.
If you have irritation, best thing would be to remove the aids till your ear canals heal. If you have otitis, you’ll need to put medicated drops in the ear till the condition is gone. Good luck to you, cuz the last thing we want is to NOT be able to wear our aids. It’s not a perfect world tho, and bacteria is ever-present.