Suffering from throat infection and cough. please suggest the best ways for cure.

Throat infection: If you could have strep, then you need antibiotics. Otherwise, I recommend really warm salt water gargles several times a day and ice chips. If you are coughing up anything, then you have something going on besides just a sore throat. If in doubt, see a doctor.

That depends: If a viral infection,--> rest, increase your fluids, soft foods, and it should get better in time,...If bacterial, you will require an antibiotic prescription.