Took a trip to the emergency dentist for a wisdom tooth infection, my gum looks like it’s blown open and there’s pus leaking in my mouth 
The dentist gave me antibiotics and suggested I scrub the gaping hole with a toothbrush several times a day for five minutes at a time. Is that standard advice because I simply can’t see how irritating the tissues when they’re already inflamed and sore would help?Plus how is that not a massive risk of further infection as toothbrushes are generally not exactly sterile?! Any dentists on here to advise? 