Hypersensitivity Reactions Following Onabotulinum Toxin A Touch-up Injection Possibly Associated with Covid-19 Infection
Description
As one of the most common cosmetic procedures, botulinum toxin A (BTX-A) injections are basically safe. The typical allergic reactions include erythema, edema, pruritus, and wheal, which generally occur at the initial injection. Herein, we reported
