Meningitis is a dangerous disease that involves the swelling of the brain and spinal cord. A rash can be one of its many symptoms. The rash that accompanies meningitis appears as tiny brown or red marks that can change into larger purple blisters. To check to see if a rash could be a result of meningitis, press a clear drinking glass against the rash. If the spots can be seen through the glass, then meningitis may be its cause. The meningitis rash can occur anywhere on the body, including inside the mouth or eyelids.