Hello Meenakshi and thanks for writing in
You can take amoicillin with your BP medication
if you do not have any previous hypersensitivity
to the drug or group of drugs. Also your Blood pressure must in under control before you start the antibiotic. To get rid for the throat pain do regular lukewarm gargles and take anti-inflammatory drugs like Ibuprofen
to reduce pain. Avoid cold water or drink, sugar, fatty and oily food. Take only fresh and warm food. Keep a good oral hygiene
Hope this will help you.