Hi. Greetings. The trigger for the itching could be anything... Anything as simple as dryness.. So first use a good moisturiser - something like cetaphil or even simple liquid paraffin. Stop scratching. This will only aggravate the problem by continuing it in the form of a vicious circle. Secondly see a dermatologist - u may need some stronger creams Incase you have developed lichen simplex chronicus due to scratching. Don't worry . it is easily treatable. Warm regards. Dr Govind S Mittal, Excel care hospital. Bangalore.