Petticoat Junction - Season 6 - Eps 21: I'm Allergic to Daddy
Janet gives Kathy Jo a clean bill of health as the rash that she had has cleared. She figures Kathy Jo was allergic to something that isn't around anymore. But Kathy Jo's rash reappears when Steve returns from a week long business trip. Janet suggests Steve temporarily move out of the house to see if the rash clears while he's away. Then gossip spreads throughout the valley that Steve and Betty Jo have separated. Kathy Jo's rash clears up again. Steve is growing frustrated that he still can't go home. In the end, Janet figures out what is causing the rash and it isn't Steve.
About Petticoat Junction

Title: Petticoat Junction
First Air Date: 1963-09-24
Last Air Date: 1970-04-04
Status: Ended
Rating: 5.8/10 (from 37 votes)
Language: EN
Seasons: 8
Total Episodes: 222
Network: CBS
Genres: Comedy, Family
Production Companies: McCadden Productions, Filmways Television
Synopsis
The Bradley family are proud owners of the Shady Rest Hotel. Kate and her three young daughters do the job of running the hotel.
Cast

Mike Minor
Steve Elliott

Meredith MacRae
Billie Jo Bradley

Lori Saunders
Bobbie Jo Bradley

Edgar Buchanan
Uncle Joe Carson

Frank Cady
Sam Drucker

June Lockhart
Dr. Janet Craig

Linda Henning
Betty Jo Bradley