A mum has issued a warning to all parents after her four-year-old son was left covered in a painful rash from playing outside.
Caroline Gel says youngster Oliver was in the garden on Tuesday (May 17) and decided to befriend a caterpillar he had found.
Just half an hour later, he was left in agony with a strange 'stinging' sensation across his face and mouth - and woke up the following day with a severe rash all over his body.
