A warm voice reads: “You wouldn’t shampoo without conditioning, so why not use a combination thrush treatment like Canesten Combi to soothe the external itch AND clear the internal infection.”
First, I reckon some people DO shampoo without conditioning.
Second, there is absolutely no logical connection between washing your hair and treating thrush.
Third, saying “use a treatment like Canesten” almost encourages people to check out similar alternatives.
Hmm, you wouldn’t write copy without using a copywriter, would you?