It is no secret that even though topical steroids are effective, they are also considered damaging as National Psoriasis Foundation explains. Safer treatments such as this vitamin D based ointment are more commonly being sought out for various skin conditions:

“However, while corticosteroids can be an effective treatment, they have also been known to damage the bones of the fingers and toes, the researchers note.”

https://www.psoriasis.org/advance/safer-nail-psoriasis-treatment-as-effective-as-topical-steroids

 

topical steroids