His owner Barry O’Connell questioned why ther are no warning signs in the area (Picture: Barry O’Connell/ SWNS) Giant hogweed is a common, cow parsley-like plant (Picture: Getty) The dog has since been put on antibiotics and has a cone around his head to help with his recovery (Picture: Barry O’Connell/ SWNS)Winston, who serves as his assistance dog, has since been put on antibiotics and has a cone around his head to help with his recovery.