How long does electrosurgery take to work for dermatosis papulosa nigra?

DPN bumps are often treated individually. Heat removes or reduces the targeted surface, so a small crust or tender area may form. Redness, temporary swelling, or a darker or lighter mark can remain while the skin repairs. The treated bump may look different before the longer-term result is clear.

Use only the cleansing and ointment routine advised by the clinician. Leave any crust undisturbed, avoid rubbing the area, and pause irritating products until the skin has closed. Once healed, sun protection can help reduce persistent colour change on exposed facial skin.

Ask for medical advice if redness spreads, pain worsens, pus appears, or the area becomes increasingly hot. Get prompt help for persistent bleeding or fever. If a bump looks unlike the others, changes rapidly, or returns, have it examined rather than assuming it is another DPN lesion.

Ask how many bumps can be treated in one visit, how your skin tone may affect temporary marks, which products to avoid, and when healing will be assessed.