I get white stones in my tonsils every few days and they result in tonsillitis every few months. Do I need my tonsils out? How do I get rid of stones?

Prpbably. You are probably a chronic carrier of infection. Antibiotic therapy never completely eliminates the infection. Get a culture(not just strep). Treat with meds, reculture for test of cure. May need significanty longer treatment, or take tonsils out!