4 year old child, red itchy welt on thigh, rashes on skin, s-shaped track on arm. Causes and treatment?
my 4 yr old just woke up with a large (2 x 2 ) red itchy raised welt on her thigh. On closer inspection, I found a track going up the front of her thigh and back down the back of itch like something burrowed under her skin. THere is also an S shaped track on her arm about an inch or two long. What could it be and how would we treat it?