Most simply you just wanna keep it oily inside and out. Oily baths or even showers and you have it under control on the surface.
Under the hood diet is profound, olive oils, coconut, and pretty much anything healthy can turn around the problem.
Cannabis seems to help, a salve is worth a try and sounds fun if nothing else. But don't treat with medicine till diet is changed, that's the cure you want.
LIke your diet your regular cannabis use should be oily, tinctures and cbd concentrates and smoking is going to hurt, you don't put a fire next to dry anything.