What lessons can we learn from an apparent decrease in the use of topical drugs for psoriasis?

What lessons can we learn from an apparent decrease in the use of topical drugs for psoriasis? Br J Dermatol. 2019 Jan;180(1):19 Authors: Criado PR PMID: 30604540 [PubMed - in process]

https://www.ncbi.nlm.nih.gov/pubmed/30604540?dopt=Abstract

Source: The British Journal of Dermatology - January 1, 2019 Category: Dermatology Authors: Criado PR Tags: Br J Dermatol Source Type: research