Thanks for writing in.
Itching over lower legs can be eczema,fungal infection
Proper diagnosis is needed for proper treatment.
Images of the affected skin can be very helpful for diagnosis.Premium question user can upload the photos with questions.
You can apply calamine
lotion for itching and take tab zyrtec for itching.
You can continue ketoconazole
it is usually prescribed for fungal infection.
Hope this helps.