Hello, my name is Ranen and I am an aesthetic nurse at Aesthetic skin in Chicago. Tell your laser provider or dermatologist immediately. Bring photos in good lighting and note when the white spots first appeared. They can determine whether it’s temporary hypopigmentation or something deeper. Pause further laser sessions on those areas until you get professional evaluation. Continuing treatment could worsen pigment loss. Protect from sun exposure strictly. Hypopigmented skin has little to no melanin protection → easily burns and can make contrast worse. Use broad-spectrum mineral SPF 30–50 and physical protection (hat, shade). Avoid bleaching/lightening products (like hydroquinone, high-dose retinoids, strong acids) until your skin tone evens out again. Keep the barrier healthy. Use gentle cleanser and bland emollients (e.g., CeraVe, Vanicream, Avene Cicalfate). Avoid picking or scrubbing the white areas.