What Needs to Be Done for Foreign Objects in my Lip?

I had a fall last year and bit through my lower lip. The lip was sutured at the hospital however months later, foreign objects began emerging from an opening that continues to fester. Another small object that looks like hard flat plastic, the size of a sésame seed was released with much pus, fluid and blood. Who do I need to see to have this corrected? I asked but each time it appeared to be healing on it’s own so nothing was done. I’m out of the country for 30 days without médical.