burning/itchy hands and feet

Ok, I'm 17 and no where near the metapose cycle and yet I'm experiencing lack of sleep due to the overwhelming burning and itching in my hands, feet, and lower hip and thigh areas. I'm pregnant and I'm begining to think that its due to a rash that I got while being exposed to Fifths Dieases. I just need to know if there is anything that I can do for it (I would prefer it to be a natural remedy but if there is none then tell me the others). Thank you