Hello, Plaque remaining on the teeth will cause decay and tissue inflammation. Left untreated, this may turn into a possible abscess situation. An abscess can occur in tooth structure as well as a in periodontal supporting bone and gum. Oral hygiene must be maintained. The spread of infection is of great concern and should be treated. Antibiotics may need to be prescribed and recommended treatment completed to eliminate infections. Most likely the symptoms are related to a deteriorated oral condition that will require extractions or root canal therapy. Please schedule a dental visit and discuss options to be able to improve home care. Therw are assorted tools available to assist difficult situations and your dentist will guide you with suggestions for this difficult siruation after a full evaluation. Thank you for your inquiry and I hope you will be able to have relief soon.