Struggling with ear canal psoriasis

A brief history: I don't have psoriasis anywhere else on my body except in my ear canals and occasionally a little on the outside of the ear. I developed it less than 2 years ago, so it was a surprise! Now I'm in the unfortunate situation of going to see the ENT consultant every 4–6 weeks so he can suction out the skin debris in my canals. All the dermatologist gave me was steroid drops (betamethasone). I have calcipotriol and tacrolimus ointments which help a little but can't reach deep inside the canals. Nothing is really helping and it feels like an ongoing regime of steroid drops and microsuction is just masking the problem. I've tried oils like olive oil over several days but that made my blocked ears worse. I broke down in tears at the ENT's this morning because it's really getting to me. I just want my ears back how they were. Perfectly normal for 30 odd years until this happened. My question is has anyone else suffered with this and what treatments were you given? Thank you. P.S. I'm on a biologic (adalimumab) for a joint condition, not psoriatic arthritis, but that hasn't helped.