Who's the Boss? (1984)

S1E5 A Rash Decision

Tony drops by to see Angela during the shoot for a soap commercial and unexpectedly finds himself as the lead in the advertisement. Shortly after, he discovers he has developed a bothersome rash, which is linked to the soap itself. Angela is then faced with a tough choice: should she promote a product created by a company that isn't fully transparent about its possible adverse effects?