"Delayed hypersensitivity reaction to hyaluronic acid dermal filler post COVID-19 viral infection".

Dermal fillers have been an effective therapy for people pursuing non-invasive facial rejuvenation.1 Hyaluronic acid (HA) soft tissue fillers specifically; have become a popular device for enhancement of facial features over the last few years.2 We are presenting a case of a 32 years old lady treated at The Esthetic Clinics, Mumbai in February 2020 for facial rejuvenation. She was rejuvenated using dermal fillers at multiple sites on her face. The patient is a regular patient with us and had facial rejuvenation with dermal fillers regularly since the past 6 years and has never reported any reactions or adverse effects related to dermal fillers in the past. (Figure 1-A & B).