My friend has just returned from the USA and said she developed Margarita sunburn? What is this?
This is a skin condition called phytophotodermatitis, which happens when oil from some plants or citrus fruits, commonly lime (hence the Margarita tag), grapefruit and some oranges, gets on the skin and is then exposed to UV light. This can cause a chemical burn reaction, resulting in stinging blisters and hyperpigmentation which can take weeks to fade. All skin types can be affected. To avoid, always wash hands and skin if you are eating or handling citrus fruits, especially limes, in the sun and wear sun protection at all times.