I had a flair of sebopsoriais in 2020 that is in its last bit of healing now. It was mostly on my scalp/face. What finally helped clear it up was t/sal shampoo which helped soften everything/remove plaque build up, and after that I’d use t-gel. After the shower blow dry my hair and then apply my topicals. The T/gel and t/sal both worked ok on their own, but when I started to use the t/sal followed by the t/gel is when I started to see a huge difference. My theory is the t/sal helped soften and remove plaque build up enough that the tgel and medications could actually get to the problems areas to treat it. And I’m sure the extra 5 min in the shower letting the t/sal sit also helped soften things.