What should you know about CO2 laser for sebaceous hyperplasia?

Sebaceous hyperplasia consists of enlarged oil glands, often appearing as small skin-coloured or yellowish bumps with a central dip. They are usually assessed clinically, but a changing, bleeding, crusted, or unusual bump may need a closer examination before cosmetic treatment. CO2 laser removes the visible centre by controlled heat. It can improve a treated bump, yet it does not prevent other glands from becoming enlarged later.

The treated spot may be red, tender, swollen, or crusted while it heals. Temporary darkening or lightening is possible, particularly when inflammation affects pigment production.

Ask for confirmation that the bump is sebaceous hyperplasia and disclose medicines, cold sore history, eczema, and prior pigment changes. Do not squeeze or scratch the lesions before treatment. Afterward, cleanse and protect the area exactly as directed, avoid picking crusts, limit direct sun, and delay retinoids, exfoliants, and strong acne products until the surface has closed. If several bumps are present, discuss whether treating a sample first is sensible for your skin response.

Contact the clinic for increasing pain, spreading redness, pus, fever, persistent bleeding, or a wound that is not closing. Seek assessment for any bump that changes independently of treatment, develops a sore, or returns with a different appearance. Urgent care is appropriate for rapidly spreading swelling or signs of a serious allergic reaction.

Ask how the diagnosis was confirmed, whether CO2 laser or electrosurgery fits the lesion and your skin, how pigment changes will be managed, what aftercare is required, and what to do if another bump appears.