In the active phase, focus on suppressing progression, and in the stable phase, focus on pigment restoration.
If new white patches appear or existing lesions enlarge, it can be considered an active phase. During this period, rather than filling in pigment, the priority is to regulate the immune response to prevent further spreading.
In oral mini-pulse therapy, where a small dose of oral steroid is taken at regular intervals, disease progression was reported to be suppressed in about 89% of patients. If steroid use is difficult, treatments such as cyclosporine may be considered.
Conversely, in the stable phase when white patches no longer spread, ultraviolet therapy and excimer laser are used to induce pigment restoration.
In 35.7% of patients who consistently received narrowband UVB (NB-UVB) therapy for 12 months, 75% or more repigmentation was observed.
