Anyone want to hazard a guess as to what this rash possibly is? I've had it occur 3-4 times over the last 18 months. It's super itchy covers most of my body it stings to shower or bath and lasts anywhere between 3-8 days. Drs haven't been helpful either time I've been and all blood test were negative. Dr just says possible allergic reaction to something but it freaked my workplace out enough last year that they requested I go to the drs and couldn't return to work until I had 🤣.