Sunburned Lips: Symptoms and Care

The lips receive sunlight but have little natural protection. After exposure, they may become red, warm, swollen, sensitive, chapped, or scaly; more severe injury can produce blisters or peeling. Symptoms can become more noticeable after the exposure rather than immediately. Repeated ultraviolet injury contributes to [Sun-Damaged Skin](/conditions/photoaging/). A recurring grouped blister, crust, or tingling sensation may point to another cause, such as a cold sore, rather than simple sunburn.

Use shade, a hat, and a lip product made for sun protection once the surface can tolerate it. For current discomfort, place a cool damp cloth over the lips for short periods and apply a plain, fragrance-free emollient. Drink enough fluid and avoid licking, biting, scrubbing, or removing loose skin. Choose foods and drinks that do not sting, and avoid smoking while the surface is irritated. Do not put toothpaste, butter, essential oils, or strong acne products on the lips. [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/) may be discussed if dryness is persistent.

Contact a clinician if pain or swelling is severe, the lips develop extensive blisters, symptoms keep worsening, or healing does not start. Seek urgent help for facial swelling with breathing or swallowing difficulty, inability to drink, fever, pus, or redness spreading beyond the burned area. Recurrent lesions deserve assessment because sunburn is not the only possible explanation.

Does the pattern fit sunburn or a cold sore? Which lip moisturiser and sun-protection product are suitable for me? Should any medicine be used for the swelling or pain? How should I protect the lips during outdoor activities?