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I saw something like that before are you sure there was'nt any Giant Hogweed on the banking that you were strimming mate cause the sap off that stuff gives very similar burns.
Coming into contact with the sap of giant hogweed, followed by exposure to sunlight, can produce painful, burning blisters, also known as photo-dermatitis. Hogweed stems contain a large amount of juice that squirts out when stems are broken or cut. Contact with the toxic sap usually happens when people cut down hogweed plants without taking precautions.
Children are attracted to the large, hollow stems for pr