Swelling of the left side of my face after the dentist rescrewed a dental implant screw which had come of. What to do?

After 2 months of getting my dental implants, one of the screws came off so I went to the dentist. The dentist took it from my hand and without sterilizing or disinfecting it straight away screwed it back in place very tightly. When I reached home I had a lot of discomfort and the next morning my entire lt face was swollen. I called the dentist and told him about it and he just asked me to take some anti inflammatory and antibiotics. Should I go to some other dentist and get the screw removed?