Chronic Pharyngitis/Comes n Goes.

Dear Respected Dr's I hope you and your loved ones are safe and doing well. Dr I have been watching since 2 months my pharyngitis comes and goes and again comes and goes. .. But 10% of its swelling at the back of the throat is always there and the rest symptoms come and go. I consulted with one ENT, he said it's Streptococcal Pharyngitis, but after taking 5 days of antibiotics course it should be resolved but it's upcoming again and again Can anyone plz help me out from this issue ,. Symptoms:- 1. Acid reflux since a year. 2. Throat swelling 3. Low voice 4. Painful swallowing 5. Throat tightness and spasm 6. Burping Diagnostic test done 1. In Feb 2023 Laryngoscopy done and 1.5 months back indirect laryngoscopy done 2. In June 2023 Upper GI done 3. 3 months back ultrasound done for abdomen 4. 4 days back ENT checked my throat but din do indirect laryngoscopy said it's infectious Pharyngitis Plz help, I hope it's nothing serious I am scared and very much worried