If the gum near the tooth is inflamed, at home you can do the following flattening:
Antiseptic solutions: chlorhexidine, miramistin, any mouthwash (listerine, miramistin, orasept);
Anti-inflammatory preparations: chamomile, sage, St. John's wort, Rotokan mixture;
A solution of soda with salt. Half a teaspoon of soda and a couple of pinches of salt in a glass of warm water.