Has anyone done intralesional corticosteroid injections - seems they may have some benefits over topical injections;
What are the advantages of intralesional steroids?
Intralesional administration of corticosteroids is used to treat a dermal inflammatory process directly. In contrast to topical steroids, intralesional steroids:
bypass the barrier of a thickened stratum corneum
reduce the chance of epidermal atrophy (surface skin thinning)
deliver higher concentrations to the site of the pathology.
Maybe topical steroids don't get deep enough for the EC and thats why they dont work?