How effective are topical corticosteroids for sunburn?

Sunburn is an inflammatory skin injury caused by ultraviolet exposure. A steroid may be considered in selected situations, but applying one routinely to a fresh sunburn does not undo the injury or prevent peeling. Some products can irritate damaged skin, especially when they contain fragrances or other active ingredients. Blisters indicate a deeper burn and should not be deliberately opened. The skin can remain sensitive after the redness fades, so further exposure may worsen discomfort and delay recovery.

Move out of the sun, cool the skin with a lukewarm shower or cool damp cloth, and use a bland moisturiser while the skin is still slightly damp. Drink fluids if you can, wear loose clothing, and protect the area from more ultraviolet exposure. Do not use ice directly, scrub peeling skin, or apply numbing products to large areas without advice. A pharmacist or clinician can help choose suitable pain relief and decide whether any prescription cream has a role.

Seek urgent care for extensive blistering, severe pain, confusion, faintness, repeated vomiting, inability to drink, breathing difficulty, or signs of heat illness. Get medical advice if a child is badly burned, the eyes are affected, or the skin becomes increasingly swollen, hot, or oozing.

Ask whether the burn needs examination, what to use on blisters, which pain relief is suitable for you, and whether another rash or medication reaction could be contributing to the symptoms.