Thank you for your query at DoctorSpring.com
The infection was definitely pretty bad since your kids also developed tonsillitis and bronchitis respectively. The problem with viral infections are if they don't settle down in a day or two they make us more prone for bacterial infections. In that case it is better to start antibiotic as early as possible.
I will advise you take the following medicines for the next 5 days :
1) Tab. Amoxycillin-Clavulanic Acid ( Augmentin ) 650 mg twice daily for 5 days.
2) Continue with the painkiller since it will help in reducing the back and neck pain.
3) Cap. Cobadex CZS, once daily at bed time for 5 days.
Continue the following medicines for 2 days and update me on your symptoms.