Thanks for your question on Healthcare Magic.
I can understand your concern.
By your history and description, possibility of Upper
respiratory tract infection (URTI) is more likely.
URTI causes inflammation in throat which is causing
sore throat.
Phexin is cephlaxin. It is antibiotic similar to cefixime (already taken). So don't start phexin.
Along with
amoxicillin clavulinic acid, you should follow these for sore throat.
1. Drink plenty of fluids orally. Avoid oily and spicy food. Avoid hard to chew food.
2. Do warm water gargles 5-6 times a day.
3. Also take anti inflammatory drug like
paracetamol and
ibuprofen twice daily for 5 days.
Don't worry, you will be alright with all these.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.