I just finished antibiotics 48 hrs ago for a tooth infection and tonight my face is swelling again, is this normal?

No. See an oral surgeon asap. The infection may have to be surgically treated with antibiotics. Of course the tooth will need to be extracted or have a root canal. Good luck.
Not normal. Facial swelling is a sign of a significant infection and it needs to be addressed without delay as it can progress to cause serious problems. Patients in similar situations need to be seen urgently.