Hi!
itching is a very generic symptom in dermatology. It is due to various reasons depending on the age, sex, skin type ,environmental changes like air ,water ,internal health issues etc. Sometimes scabies, allergies etc also can be the causes .only depending on the cause ,we can suggest proper treatment ,which can be done after thorough examination. Mean while, use a good moisturising cream to entire body to prevent dryness. Please consult online or have direct consultation with your local dermatologist for best advice and treatment.