I notice redness in the person’s skin touching the denture?

Make a dental appointment. A dentist will assess the cause(s) of redness (yellow arrows) and identify solutions.
Redness is noticed at areas where skin is touching the denture. This redness looks different from the usual pink color of health skin that is not covered by the denture.

For temporary relief, consider switching to a soft food diet and avoid using the dentures until seen by a provider.