If you experience persistent muscle weakness, fatigue and skin changes that don't seem to fade, it could be more than just ...

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.

A 27-year-old man presented with a 6-month history of an itchy rash. Confluent, hyperpigmented plaques across the torso and upper arms and axillary and inguinal lymphadenopathy were noted on ...