Hello, itchy ear could be due to many causes like dry ear canal, canal skin allergy, wax etc. The treatment for each is different. Better to consult and then take treatment.
Next Steps
Consult an ENT specialist locally and let him examine your ears
Health Tips
1. Avoid water entering your ear till you consult
2. Take tablet Fexofenadine 180 mg once daily to just reduce the itch.