What should you know about red light therapy after sunburn?

Sunburn reflects UV injury and inflammation in the skin. The surface may feel warm, tight, tender, itchy, or painful, and peeling can begin as the damaged outer layer sheds. Adding a light device while the skin is reactive can increase discomfort or make it harder to recognise worsening injury.

Red light therapy is not a substitute for cooling, hydration, sun avoidance, or medical assessment. Wait until the skin has returned toward its usual temperature and comfort, with no open blisters or active peeling, then ask whether the device is suitable. Acne and pimples should be managed separately rather than treating a sunburned face with extra sessions.

Move out of the sun, use cool—not icy—compresses, and apply a gentle moisturiser if it does not sting. Drink fluids, wear loose clothing, and do not pick peeling skin or break blisters. Avoid exfoliating acids, retinoids, fragranced products, tanning, and heat until the skin has recovered.

When restarting, show the LED device or panel to a clinician and follow its distance, exposure, and eye-protection instructions. Stop immediately if warmth becomes painful, redness intensifies, or swelling or blistering appears.

Seek medical advice for extensive blistering, severe pain, dehydration symptoms, fever, chills, vomiting, confusion, or a burn involving the eyes, face, hands, or genitals. Urgent help is needed for breathing difficulty, fainting, or rapidly worsening swelling. Do not use light therapy over a burn that is open, infected-looking, or worsening.

Has my sunburn healed enough for LED light? Could my medicine or skin condition increase light sensitivity? What signs show that I should stop? How should I protect the treated area from further UV exposure? When can I return to my usual skin-care products?