Medically reviewed by Renee Nilan, MDMedically reviewed by Renee Nilan, MD COVID arm rash is a delayed hypersensitivity reaction that occurs approximately five days after the COVID-19 vaccine.
Sammy Knowles, 40, described how little Jaxon was "crying blood" after she spotted a rash which led to a fatal ... "He was complaining about under his arm [armpit] hurting. "He then went to ...