Enjoying a refreshing cocktail in the sun is a summer pastime, but it can come with an unexpected risk: “Margarita Burn,” also known as phytophotodermatitis. This skin reaction occurs when certain chemicals in citrus fruits, combined with exposure to sunlight, cause inflammation and discoloration of the skin.

A dermatologist warns against squeezing citrus fruits, like limes, directly into drinks while outdoors. The reaction isn’t limited to margaritas; any contact with citrus followed by sun exposure can trigger it.

The symptoms of phytophotodermatitis can vary, but often include:

• Redness and inflammation of the skin
• Blisters or raised bumps
• burning or itching sensation
• Darkened patches of skin (hyperpigmentation) that can last for weeks or months

The rash typically appears 24-72 hours after exposure and may look like a sunburn at first. However, the distinctive feature of “Margarita burn” is its streaky or patchy pattern, corresponding to where the citrus juice came into contact with the skin.

the best way to avoid phytophotodermatitis is to take precautions when handling citrus fruits in sunny conditions:

• Wash your hands thoroughly with soap and water after handling citrus fruits.
• Wear gloves if you’ll be squeezing or cutting citrus fruits for an extended period.
• Apply sunscreen liberally to all exposed skin, especially your hands and arms.
• Be aware that other plants, such as celery, parsley, and figs, can also cause phytophotodermatitis.

If you suspect you have “Margarita burn,” treatment options include:

• Washing the affected area with soap and water.
• Applying a cold compress to reduce inflammation.
• Using a topical corticosteroid cream to relieve itching and inflammation (consult a doctor or pharmacist).
• Protecting the affected area from further sun exposure.

In severe cases, a doctor may prescribe oral corticosteroids or other medications. The hyperpigmentation that can occur after the initial inflammation may fade over time, but it can sometimes be permanent. Prevention is key to avoiding this uncomfortable and potentially disfiguring condition.