What should you know about red light treatment for skin?

A panel or handheld device places red light over the skin for a planned exposure. The surface is not cut or peeled, and sensations may include warmth or mild temporary redness. Response depends on the device, the skin problem, and whether the treatment is being used alone or alongside another plan.

Redness has many possible explanations. It can occur with irritation such as [Contact Dermatitis](/conditions/contact-dermatitis/), heat exposure, [Sunburn](/conditions/sunburn/), [Rosacea](/conditions/rosacea/), or infection such as [Cellulitis](/conditions/cellulitis/). Treating colour without checking the cause can delay suitable care.

Tell the clinician about medicines, creams, recent procedures, eczema or psoriasis, and any history of light sensitivity. Follow instructions for clean skin, distance, exposure time, and eye protection. Avoid experimenting with longer sessions or combining the device with a new active product while you are trying to understand your response.

Use gentle cleansing and moisturising if your skin tolerates them, and protect exposed skin from sunlight. Ask whether [IPL Photofacial](/treatments/laser-and-energy/ipl-photofacial/) is a more suitable option for the type of redness being assessed.

Seek prompt care for redness that spreads quickly, feels hot and painful, produces pus, or comes with fever or feeling unwell. Urgent assessment is also needed for facial swelling, breathing trouble, severe eye pain, or blistering. Stop treatment if irritation is marked or does not settle, and have persistent redness examined rather than repeatedly treating it at home.

Ask what is causing the redness, whether light treatment is appropriate, what medicines could interact with it, and how your response will be monitored. Ask which symptoms should prompt same-day care and when to stop if the skin becomes more irritated.