What should you know about sun poisoning spots?

Despite the name, sun poisoning is not usually poisoning from a chemical. It describes a stronger sun reaction than ordinary mild redness. The skin may feel hot, tender, itchy or swollen, and small bumps or fluid-filled blisters can appear. Peeling may follow as the surface heals. A spotty eruption can also be confused with pimples, follicle irritation, or another rash, especially when sunscreen, sweat, or friction is involved. The appearance alone cannot identify the cause.

Move out of direct sun and cover the affected skin with loose, soft clothing. Cool it with a clean damp cloth or a lukewarm-to-cool shower; avoid ice directly on the skin. Use a bland, fragrance-free moisturiser on intact skin, drink fluids, and do not pick blisters or peel loose skin. Pause fragranced products, scrubs, and exfoliating acids until the area settles. Keep protecting the skin with shade and clothing; ask a pharmacist or clinician which pain or itch treatment fits your health history.

Arrange prompt medical advice for extensive blistering, worsening pain, marked swelling, fever, vomiting, dizziness, confusion, or signs of dehydration. Seek urgent help for trouble breathing, fainting, severe weakness, or swelling involving the eyes or lips. A clinician should also assess spots that spread, ooze, become increasingly warm, or fail to improve after sun avoidance, because infection or a different skin condition may need treatment.

Ask whether the pattern fits a sunburn reaction or another eruption, which products are safe on blistered skin, and how long to avoid sun exposure. Mention any new medicines, supplements, sunscreen, or cosmetic products used before the spots appeared. If the spots recur, ask whether you need assessment for light sensitivity.