According to your sign and symptom you have query about some hard exudate particle particle as like stone and why that come out thorough throat.
Please give complete history.
Next Steps
Please take consultation for better evaluation and best treatment as need complete history about you.
Health Tips
Please follow good life style as take plenty of fluid and take less spicy and fatty foods and do exercise regularly with yoga and meditation and keep positive attitude to fight any disease and any problem of your life.