Sorry to hear a little one has been hit with this nasty disease. Below are some notes from "Overlooked Infections Associated With Lyme Disease".

A couple of things I want to mention.

RMSF can become chronic if not treated promptly and properly. It can also be fatal.

Doxycycline has been the drug of choice for just about forever.. however.. with a young child.. they may try another antibiotic?

If the child was diagnosed with RMSF.. I would advise the parents to also have the child checked later for Lyme and co-infections. Testing now won't help because it is too soon. But we don't want to miss an underlying infection.

The child should have NO trouble being treated for RMSF. If they do.. please let me know. I will help in any way I can.

Normally treatment that is done properly and promptly is very successful.

Be sure the parents do what they can to prevent another tick exposure... especially if the child got it in their yard.

Hope this helps.

Rocky Mountain Spotted Fever:

RMSF is a rickettsial disease normally presenting with a sudden onset
of fever, chills, fatigue, muscle pain, headaches, and conjunctivitis. A
spotted rash may appear on the hands and feet in about 50% of cases.
Delay in treatment may result in death or a chronic illness which can affect the brain, spinal cord, heart, lungs, kidneys, or liver. Chronic cases of RMSF may also cause a loss of bladder or bowel control, blood
clotting problems, partial paralysis, hearing loss, congestive heart
failure, movement disorders, and respiratory distress syndrome. The fatality rate can reach 20% in untreated cases.

But ducks here in my state, where RMSF is most prevalent, didn't even consider it, and she nearly died as a result.

This can be very serious if not treated promptly, so make sure things happen quickly. And that the ducks consider other tick-borne diseases.