What is the reason for recurrent fever caused by tonsillitis?

Patient's question:

High fever, sore throat
Onset time: Three days
Laboratory test results: Tonsillitis
Previous treatment and effectiveness: Received penicillin at the hospital, fever subsided, but it reappeared again tonight, only with fever-reducing medication

Doctor's answer:

When tonsillitis acquires a focus, bacteria will domesticate here and produce toxins, which enter the bloodstream, triggering an autoimmune response in the body. This autoimmune response is an abnormal allergic state that can further lead to the disease of many important organs, such as acute nephritis, rheumatism, etc. The harm of these complications is far less than the harm of tonsillitis itself.
Recommendations:
- Exercise regularly to enhance physical fitness.
- Pay attention to oral hygiene.
- Seek timely treatment for nearby diseases.
- Maintain a light diet, avoiding spicy and irritating foods.
- Quit smoking and alcohol.
- If this condition develops a focus leading to other diseases or if there are other surgical indications, consider surgical treatment.