Hello!
I have been through your question.
Related your concern you should know that 
scarlet fever is caused by the same type of bacteria that cause 
strep throat. In scarlet fever, the bacteria release a toxin that produces the rash and red tongue.The infection spreads from person to person  when an infected person coughs or sneezes. Scarlet fever germs spread more easily among people in close contact, such as family members or classmates. Usually children 5 to 15 years of age are more likely than are other people to get scarlet fever, but according to  some reports, some cases are being seen in adults. However, people of any age can get the illness. What I suggest  first for you is testing  for the strep bacteria and do a physical examination by a doctor, full blood count,protein c reactive, fibrinogen,in order  to define better or to exclude the diagnosis. Tests for 
streptococcus are important because a number of conditions can cause the signs and symptoms of scarlet fever, and these illnesses may require different treatments. If there are no strep bacteria, then some other factor is causing the illness for example the virus (flu). Furthermore you can use 
nurofen for body aches and maxalon for 
vomiting and of course if   you have scarlet fever is recommended using of  antibiotics  prescribe by your doctor (
amoxicillin or 
ampicillin or penicillin if you aren't allergic).
I hope my answer help you.
I wish you a quick recovery.