Native speaker
In Emirati Arabic, “Tonsillitis” is إلتهاب اللوزتين (iltihaab al-lawzatayn).
إلتهاب اللوزتين
Tonsillitis
It's in the phrasebook under At the doctor, with 251 more like it.
Source: DLIFLC Emirati Medical Language Survival Kit (2007). Credits and licences