Dr. Sharma performed tests on Percy Sugden when he was admitted to Weatherfield General suffering from asthma in August 1991. Percy was found to be allergic to pollen and cats - meaning he could not remain living with his new landlady Winnie Dyson who owned a cat called Fluffy. Percy's former landlady Emily Bishop reluctantly agreed to allow him to return to lodge with her at 3 Coronation Street.
In December 1992, Alf Roberts was admitted to hospital with a suspected heart attack. Dr. Sharma spoke to Alf's hysterical wife Audrey and daughter-in-law Gail Platt, and assured them that he did not believe Alf's illness was connected to his heart. Alf turned out to be suffering ill effects after eating a stack of Christmas puddings in an attempt to silence Percy Sugden's criticisms of his festive stock in the Corner Shop.