Hi..Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
As per symptoms, you might be suffering from fever causing
sore throat &
sinusitis.
Muscle pain are due to fever & headache is due to sinusitis. Following remedies can be done
1..Salt Water Gargle- Mix 1 tsp of salt with warm water in a glass. Gargle for roughly 15-20 seconds and spit out. You can repeat this as needed for 2-3 days. Remember to spit the water rather swallowing it.
2.Steam inhalation would help to reduce sinusitis & associated headache
3. You should also take augmentin 625 OR
azithromycin 500 twice a day for 5 days .
Take anti-inflammatory medicine like acetaminophen/ibuprofen . It will reduce fever and body pain
5.Take warm
liquid diet, drink plenty of water & Take rest.
You would start improving in 3 to 4 days.If problem persist visit a ENT specialist
Hope this information helps.
Get well soon.