My dermatologist told me that the majority of cases of psoriasis are very mild and fairly well controlled with topicals. that moderate to severe cases are typically a minority. is this true?

According to the National Psoriasis Foundation, about 80-90% of people with psoriasis have what is considered mild psoriasis, which means that less than 3% of their body is affected. Mild psoriasis can often be managed with topical treatments such as creams, ointments, and shampoos. So the answer is YES what your dermatologist told you is true.