thanks for your query at HCM
red swollen tonsil, pain , lymph
node enlargement indicate its infection of tonsil (tonsillitis
tonsillitis is not emergency condition, there is no need to hurry for er .
but take physician consultation soon.
till then you can take following medication
1 take tab paracetamol
500 mg thrice daily
2 tab azythromycin 500 mg one tab per day
these medication will be enough until you visit doctor.
you can go to school if you dont have have any fever
hope i answered your query