yes
During first-time outbreaks, some people also experience:
Fever
Painful eroded gums
Sore throat
Headache
Muscle aches
Swollen lymph nodes
Children under 5 years old may have cold sores inside their mouths and the lesions are commonly mistaken for canker sores. Canker sores involve only the mucous membrane and aren’t caused by the herpes simplex virus