Numb Chin Syndrom

I just had a PET scan from head to mid-thigh coincidentally just a few days before this symptom began. I'm going to read through those results a little more critically, especially the skull and brain results. Since my doctor never calls me to discuss my test results (I just read them online) and sometimes we won't discuss them at all if enough time has passed since the test- it looks like I'll be doing a lot of googling of terms tonight!

Any advice on relieving this symptom? Burning, tingling, numb chin/jaw/teeth/lip