After receiving an injection, some people experience symptoms at the injection site on the skin. This reaction is a common adverse effect of vaccines, Botox injections, biologics, and chemotherapy.

Calcium hydroxide (CH), which has been used successfully for years but can cause serious damage if used incorrectly, was inadvertently injected beyond the girl's tooth apex during a root canal. This ...

Release Date: July 26, 2013 This content is archived. BUFFALO, N.Y. – One of the most dreaded experiences at the dentist’s office is an injection into the tissues of the mouth to numb an area ...