Persistent sore throat in child
My 12yo son had flu in February, all symptoms resolved but throat remained sore for about 3 months ( when he was sick it was 7 out of 10 scale sore, by summer it went down to about 3/10, then just tickle). Then school started and he got sick with sore throat (7/10 scale), runny nose, weak and fever for one day. All these symptoms resolved in about 48 hours, but sore throat stayed. Slowly over past 2 months it went down to 4/10. We went through 3 ENTs, multy laryngoscopies ( pharynx is clear, the soreness is in mid throat, where larynx is), Allergy tests.. they cannot pinpoint the issue or what causes the soreness. Larynx appears to be fine other than slightly pinkier . Thyroid is fine ( did ultrasound). Allergies to dust mites only but we have air cleaner and we traveled a lot , changing locations did not make any difference. Blamed acid reflux, but visited to GI and she does not believe it is acid reflux ( no other typical symptoms ), we are trying Prilosec (prescription type), but it does not change anything at all… What else can be considered /checked?