What should you know about red light skin care?

Red light devices deliver visible light to the skin without the peeling associated with many resurfacing treatments. People may use them for the appearance of dullness, fine lines, or irritation, but results vary with the device, schedule, skin condition, and underlying cause. A home device is not equivalent to a supervised clinic treatment.

Redness can accompany rosacea, contact dermatitis, heat rash, psoriasis, sunburn, cellulitis, or simple flushing. The colour alone cannot identify which explanation applies. Itching, scale, warmth, pain, swelling, blisters, fever, or a sharply spreading area provide useful clues for assessment.

Read the device instructions and use the recommended distance and session length. Protect your eyes as directed, keep the device clean, and stop if burning, marked swelling, blistering, or a new rash appears. Ask a clinician before use if you take light-sensitive medicines, have a photosensitive disorder, or have an active eye problem.

Keep the rest of your routine gentle: use a mild cleanser, moisturiser, and daytime sun protection. Do not use red light to cover up a rash that is worsening or to delay evaluation of new persistent redness. A clinician can decide whether another treatment, such as IPL photofacial, is appropriate after the cause is clear.

Arrange medical review for redness that persists, recurs often, hurts, scales, or follows a new product or medicine. Seek urgent care when redness spreads quickly, feels hot and tender, forms blisters, or occurs with fever, facial swelling, breathing difficulty, or eye pain. These features can signal infection, a significant reaction, or eye involvement.

What may be causing my redness? Is this device suitable for my skin and medicines? What eye protection and schedule should I use? Which changes mean I should stop? Would treating the underlying condition be more useful than light therapy?