Hi,
Look all these are symptoms suggesting of infection. He might be having Pharyngitis/Tonsillitis?
You can do the following things:
1. Just give lukewarm water, vegetable soups. Thus maintain hydration. 2. Need to start giving a course of Antibiotics,
Paracetamol, B-Complex Syp., Antihistamines.
3. Proper Rest & healthy diet shall be helpful.
4. Monitor temperature 4 hourly will be helpful to assess prognosis.
5. If required basis investigations: CBC, BMP, RBS can be done.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Ajaygupta009, General & Family Physician