Are you running fever??
It is important to know if you have fever along with these symptoms. Presence of high grade fever with severe throat pain suggest probable bacterial infection where antibiotic use is warranted. Therefore if you have fever, I recommend that you visit a doctor nearby for evaluation.
If there is no fever, I would start you on pantaprazole 40mg once a day and advice you to continue gargles three times a day. In addition throat lozenges such as strepsil can provide instant relief. If you have tried all these, then you can also try gargling with warm water mixed with disprin
Hope this helps. Let me know if you need clarifications.