You have scabies. Don't worry, it's very common. It's a
microscopic mite that burrows within the skin and causes an
allergic reaction. This results in itching, often intens enough to
keep sufferers awake all night. Scabies is not dangerous, however
it will not go away on it's own. You must get treatment cream
called permethrin 5 percent. Apply it from head to toe, and do not
shower for 8-14 hours. This one application will kill the mite in
90% of cases. All rashes should be gone within 4 weeks.