| Orhan et al.4) | M/64 | | Sore throat, left neck and chin pain | Simultaneously | AntiviralsIntravenous antibioticsSteroidSurgical drainageTracheostomy | Expired |
| Awobajo et al.5) | F/60 | HypertensionHyperlipidemiaDiabetesChronic kidney disease | Sore throat, right neck pain, voice change, odynophagia, drooling, dyspnea | 3 weeks after | Intravenous antibioticsSurgical drainage (4 times)Tracheostomy | Rehabilitation for dysphagia |
| Özer et al.6) | M/45 | | Fever, general weakness, trismus, left chin and neck swelling | After (being quarantined of COVID-19) | SteroidIntravenous antibioticsSurgical drainageTracheostomy | Discharged |
| Shiraishi et al.7) | M/55 | HypertensionSleep apnea | Left shoulder pain | After 12 days (being admissioned for treatment of COVID-19) | AntiviralsIntravenous antibioticsSteroidSurgical drainage | Discharged |
| Sideris et al.8) | M/21 | | Sore throat, fever, odynophagia, voice change | Simutaneously | Intravenous antibioticsSteroid | Discharged |
| Charlton et al.9) | F/- | | | Simutaneously | Intravenous antibioticsBedside drainage (2 times) | Discharged |