I had a root canal 3/4 days ago. Everything went well during the procedure. Since I was so terrified he numbed me really well. There was no pain during or even the next day. Their was area soreness and some normal swelling now however, there a good lump and the lower jaw below where the root canal was. I thought it was pretty normal but the pain is going down the neck and near my ear. Also having a slight headache.

The dds didn't give me any meds for infection. I go back in this week for a deep cleaning on that side then back the following week for the crown.
Should I be worried right now that their is a deep infection that needs immediate attention? Also, if the infection is inside the jaw/root area would it matter if I rinsed w/a good mouth wash?

Thank you for your help