I'm a worried grandma. Sixteen year old granddaughter has low grade fever for about 5 days now, aches, headache, vomited once, has complained of abdominal pain, has had a rash head to toe, major rash, even on her palms, went back to the doctor today and her bloodwork shows wbc of 2.5. ?? They put her on antibiotic for possible Rocky Mountain Spotted Fever. Does this make sense? Why the 2.5 WBC. Seems low to me.