Canesten contains the active ingredient, clotrimazole. Clotrimazole is an anti fungal which is normally used to treat common fungal infections, such as nappy rash, athlete's foot, ringworm, jock itch and pityriasis versicolor. Canesten Plus on the other hand also contains clotrimazole but it has an added ingredient called hydrocortisone which aims to reduce redness, inflammation and itch.
Knowing the above, when would you use Canesten Plus? Lets take athlete's foot as an example, which presents itself with symptoms, such as redness, scaling, itch, and moist skin. Clotrimazole works by killing the fungus that is responsible for causing these symptoms, while hydrocortisone will help with the symptom management in the mean time to give you some relief (i.e. itch) and improve the visual appearance of the skin (i.e. redness, and inflammation)
The ideal treatment regimen involving Canesten Plus for a common fungal infection, such as athlete's foot is as follows:
Treat the affected area(s) using Canesten Plus three times a day until symptoms resolve, which usually takes anywhere from 1-2 weeks
Stop Canesten Plus and replace with normal Canesten and continue treatment for an extra 2 weeks with a three times daily application.
Note: The reason why you treat the area(s) for an extra 2 weeks is to ensure that you complete the treatment regimen. Also, you replace Canesten Plus with normal Canesten because the hydrocortisone component should only be used for a short duration (i.e. 1-2 weeks)