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Sunburn & Heatstroke in Spain: Treatment, Prevention & When to Call a Doctor

6 May 2026by OnCall Clinic5 min read
Sunburn & Heatstroke in Spain: Treatment, Prevention & When to Call a Doctor

Got sunburn or heatstroke in Spain? A doctor explains severity levels, treatment at your hotel, pharmacy options, and when you need medical attention.

For sunburn in Spain, get out of the sun, cool the skin with a lukewarm shower, drink 2-3 litres of water, take ibuprofen and paracetamol, and moisturise with aloe vera or Biafine without popping blisters. See a doctor for extensive blistering, fever, chills, or confusion. Heatstroke — temperature above 40°C, hot DRY skin, confusion — is a medical emergency: call 112 immediately. The combination of heat, alcohol, and sun exposure is the #1 reason tourists need medical care on the coast.

Why is Spain's sun stronger than you think?

Spain's UV index hits 9-12 between June and September — enough to cause visible sunburn in 10-15 minutes on unprotected skin. Tourists from Northern Europe and the UK are particularly vulnerable because their skin isn't adapted to this intensity. The combination of heat + alcohol + dehydration + sun exposure is the #1 reason tourists need medical care in Spanish coastal resorts.

How severe is my sunburn — what are the levels?

Sunburn has three severity levels: mild (Grade 1: red skin and slight discomfort, heals in 3-5 days with pharmacy products), moderate (Grade 2: painful red skin with some blistering, 7-10 days), and severe (Grade 3: extensive blistering, intense pain, fever — see a doctor). Sun poisoning adds a systemic reaction needing medical attention.

Mild (Grade 1): Red skin, warm to touch, slight discomfort. Treats itself in 3-5 days. Pharmacy products sufficient.

Moderate (Grade 2): Painful red skin, some blistering, swelling. May need prescription cream. Takes 7-10 days. Consider seeing a doctor.

Severe (Grade 3): Extensive blistering, intense pain, fever, chills, nausea. See a doctor. Risk of infection and scarring.

Sun poisoning: Severe sunburn + systemic reaction: high fever (>39°C), headache, confusion, nausea, dizziness. Medical attention required.

How do I treat sunburn at my hotel?

To treat sunburn at your hotel, get out of the sun into air-conditioning, cool the skin with a lukewarm (not cold) shower or damp towels for 15-20 minutes, drink 2-3 litres of water, take ibuprofen 400mg and paracetamol 1g for pain, and moisturise with aloe vera or Biafine. Don't pop blisters.

  1. Get out of the sun immediately. Into air-conditioning if possible.
  2. Cool the skin: lukewarm (not cold) shower or damp towels for 15-20 minutes
  3. Hydrate: drink 2-3 litres of water over the next few hours
  4. Pain relief: ibuprofen 400mg (reduces inflammation) + paracetamol 1g
  5. Moisturise: aloe vera gel or Biafine cream (pharmacy staple in Spain)
  6. Don't pop blisters — infection risk

What's the difference between heat exhaustion and heatstroke?

Heat exhaustion involves a temperature under 40°C, pale clammy sweating skin, and tiredness — treatable with cooling and fluids. Heatstroke involves a temperature above 40°C, hot dry red skin with no sweat, and confusion or unconsciousness — a medical emergency requiring an immediate 112 call. The table below contrasts the signs.

Heat Exhaustion Heatstroke
Temperature <40°C >40°C
Skin Pale, clammy, sweating Hot, dry, RED, no sweat
Mental state Tired, headache Confused, agitated, unconscious
Pulse Fast, weak Fast, strong
Action Cool down + fluids CALL 112 IMMEDIATELY

Heatstroke is a medical emergency. While waiting for the ambulance: move the person to shade, remove clothing, cool with wet cloths on neck/armpits/groin, fan them, do NOT give fluids if unconscious.

What should I ask for at a Spanish pharmacy for sunburn?

At a Spanish pharmacy for sunburn, ask for aloe vera gel and Biafine (trolamine cream) for the burn itself, ibuprofen for pain and inflammation, hydrocortisone 0.5% for itch, and rehydration salts (Sueroral) for dehydration — all without prescription. Silver sulfadiazine for severe burns needs a prescription.

Product Spanish name Prescription? Use
Aloe vera gel Gel de aloe vera No Mild sunburn
Biafine Biafine/trolamina No Moderate burns
Ibuprofen 400mg Ibuprofeno No Pain + inflammation
Hydrocortisone 0.5% Hidrocortisona No Itch/swelling
Rehydration salts Sueroral No Dehydration
Silver sulfadiazine Silvederma Yes Severe burns

Tip: Ask for Biafine by name — it's one of the best burn creams available in European pharmacies and many Spanish pharmacists consider it the go-to for sunburn.

How do I prevent sunburn and heatstroke in Spain?

To prevent sunburn and heatstroke in Spain, use SPF 50+ reapplied every 2 hours and after swimming, avoid the sun between 12:00 and 16:00, wear a hat and UV-protective clothing, drink 3+ litres of water a day, limit alcohol in the sun, and acclimatise gradually rather than spending all day on the beach on day one.

  • SPF 50+ reapplied every 2 hours and after swimming
  • Avoid 12:00-16:00 — UV is highest
  • Wear a hat and UV-protective clothing
  • Drink 3+ litres/day in summer heat
  • Limit alcohol in the sun — it accelerates dehydration
  • Acclimatise gradually — don't go from London grey to 8 hours on an Ibiza beach on day one

When should I call a doctor for sunburn or heatstroke?

Call 112 for emergencies — heatstroke, loss of consciousness, or seizure. Book a home doctor visit for moderate-to-severe sunburn with blistering, sun poisoning symptoms (fever plus nausea), heat exhaustion not improving after 30 minutes of cooling, dehydration despite oral fluids, or a child with sunburn.

Call 112 (emergency): Heatstroke (>40°C, confusion, dry hot skin), loss of consciousness, seizure.

Home doctor visit: Moderate-severe sunburn with blistering, sun poisoning symptoms (fever + nausea), heat exhaustion not improving after 30 min of cooling, dehydration despite oral fluids, child with sunburn.

Frequently asked questions

When should I see a doctor for sunburn in Spain?
See a doctor if you have: blistering over a large area (>10% of body), fever above 38.5°C, chills or confusion, severe pain not responding to over-the-counter painkillers, sunburn on a child under 1 year, or signs of heat exhaustion (dizziness, rapid pulse, nausea). A home doctor can assess and treat at your hotel.
What can I buy for sunburn at a Spanish pharmacy?
At any farmacia: aloe vera gel (gel de aloe vera), Biafine (trolamine cream — excellent for burns), ibuprofen/paracetamol for pain and inflammation, hydrocortisone cream 0.5% (for itch), and oral rehydration salts. Biafine is a pharmacy staple in Spain and works better than most UK/US sunburn products.
How hot does it get in Ibiza and the Costa del Sol?
Ibiza: 30-35°C (86-95°F) June-September with UV index 9-11. Costa del Sol: 30-40°C (86-104°F) with UV index 10-12. Mallorca: 28-34°C (82-93°F). At UV index 8+, unprotected skin can burn in under 15 minutes. Heat warnings (avisos de calor) are common July-August.
What's the difference between heat exhaustion and heatstroke?
Heat exhaustion: heavy sweating, weakness, nausea, headache, temperature under 40°C — treatable at your hotel with cooling and fluids. Heatstroke: temperature above 40°C, confusion, hot DRY skin (no sweating), possible loss of consciousness — this is a medical emergency, call 112 immediately.
Can a home doctor help with dehydration from heat?
Yes. A home doctor assesses how dehydrated you are, treats what can be treated at your accommodation (oral rehydration, anti-nausea medication), and refers you for IV rehydration in hospital if your dehydration is moderate to severe — for example when you're vomiting and can't keep oral fluids down. IV saline is faster than oral rehydration alone in those cases, but it belongs in a hospital setting.

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