Hi Jim,
Of course a social worker will not be able to provide medical advices because they are not trained as a medical professional. A social worker, however, can provide mental health support which can be often overlooked. Some examples can be like feelings of isolation, helplessness, hopelessness, powerlessness, feeling overwhelmed, anxious feeling, low moods, etc. which are all concerns that are worth to be to be heard, acknowledged, and processed.