Hello, infections that reoccur can be more resistant. Make sure you take a prescription antibiotic as prescribed. this means taking the dose at the correct intervals. Amoxicillin at a stronger dose may be effective. I suggest you Consider Augmentin. This is very effective with a broad spectrum. Discuss your antibiotic choice and concern with resistance further with your doctor. Antiinflammitory medication is a good addition to help reduce discomfort. Keep well hydrated and avoid irritants. If possible, try to limit your exposure to strep and those infected. You may need cultures to detect other strains of bacteria present if this dose not resolve. Thank you for your inquiry. I hope that my suggestions offer you relief.