This story was done tons of times in Westerns and other genres. Back when people paid their doctors with chickens and vegetables, some folks preferred going to see the witch, witch doctor, medicine man, curandera, healing woman, etc. Most of them and their bloodlines died off.
Steve McQueen (Josh Randall) finds a sick kid as he is riding around, and takes the kid to the doctor. The doctor and other townsfolk tell him that the kid's father (played by Mort Mills) hates doctors. At that point, Randall should have just gotten on his horse and moved on, presumably after some bounty.
Instead, Randall gets 1880s progressive on Mort Mills and starts guilting him and his wife about the kid's health. The kid is played by John Collier, whose acting career ended in 1961 after appearing in Dennis the Menace.
Mean-faced Virginia Gregg played the Mother. When I first saw this show as a child, as soon as I saw that Virginia Gregg was the Mom, I figured the kid was a goner. Surprisingly, she plays a good Mom who is concerned about her son. Gregg gives the Doc permission to take care of her son, in spite of her husband's wishes.
Randall and the Doc (played very convincingly by James Westerfield) go and hijack the child's medical care from the "healing woman" (played by Helen Kleeb, who outlived nearly everyone in this cast and died in 2003 at the age of 96).
As often happens in Westerns, all hell breaks loose once the healing woman goes to Mort Mills to tell him what Steve McQueen has done!