Patienter skal ikke opholde sig i mørke, men skal tilskyndes til at udsætte huden for normal indendørsbelysning, da det vil hjælpe med til at eliminere det aktive stof hurtigt gennem huden af en proces, der kaldes photobleaching.
Patients should not stay in the dark and should be encouraged to expose their skin to ambient indoor light, as it will help eliminate the drug quickly through the skin by a process called photobleaching.