This woman has Rocky Mountain Spotted Fever, which is actually not common in the Rocky Mountain area. This is a tick-borne illness so it is seasonal. Manifestations are fever, headache, and a rash that occurs fairly late in the course of the disease, blanches at first, and then turns peticheal. In areas of the country where this is common, many practitioners will have a very low threshold for treating even well appearing patients with fever and a headache as the disease can be very severe if not treated early.
Treatment is usually with doxycycline.
Children are treated with chloramphenicol.