1) Ask you State Licensing Board about how to properly begin a personal relationship ( THUS ENDING ANY AND ALL PROFESSIONAL RELATIONSHIPS AND CONTACTS! ) with a patient. They don't expect health care providers to be monks; but once you "compromise" the "Dr./Patient" relationship, they expect that relationship to end completely.
You don't so even give that person 12-Hour Dristan for a cold.
They will be more than happy to discuss it with you without any prejudice or penalty. "Wing-it" and you're toast.
2) Once you have made any personal contact WHATSOEVER, you have to IMMEDIATELY and IN WRITING, and place IN THE CHART and send as Certified Letter to the patient, indicating that the Dr./Patient relationship you both had has to end.
I've known physicians who just made a personal phone call to a patient, and were reported to their Boards as making the patient "uncomfortable". Now, reporting doesn't mean any action will be taken; but you have to take the time to respond to the complaint.
This all may sound like a "hassle"; but not really. It's just that Licensing Boards hold the Dr./Patient Relationship as almost Sacred.