Final answer:
Naevus sebaceous is a congenital skin lesion and may require monitoring or surgical removal. Treatment options for acne, which is a separate concern, include prescription medications, laser light therapies, and chemical peels, chosen based on acne severity.
Step-by-step explanation:
Naevus sebaceous is a skin lesion usually present at birth or developing in early childhood. It's typically found on the scalp and face and may become more prominent at puberty. Treatment of naevus sebaceous may become necessary if there are cosmetic concerns, or if there's a risk of developing basal cell carcinoma in the lesion, especially in adulthood.
Most naevus sebaceous are monitored over time. Surgical removal can be considered, especially if there are changes in the lesion that may suggest malignancy. In such cases, excision by a dermatologist is the standard treatment. While not directly related to acne, if an individual has acne that is not responding to over-the-counter products, it's advisable to see a dermatologist for more advanced treatment options.