The causes of itchy calves in a 56-year-old man include urticaria, scabies, mosquito bites, pruritus, etc. The treatment includes medication and so on. 1. Urticaria: If it is urticaria, you can give fexofenadine, cetirizine and other drugs antihistamine treatment, pay attention to avoid contact with allergens. 2. Scabies: If the phenomenon of itchy calves is triggered by scabies, sulfur ointment and other drugs can be given to kill scabies treatment. 3. Mosquito bites: If you consider mosquito bites caused by itchy calves, generally do not need treatment, especially itchy can be coated with compound camphor cream and other antipruritic treatment. 4. Pruritus: consider due to the weather, sebaceous gland secretion function due to the decline of skin nerve endings sensitive, need to pay attention to skin moisturizing coated with vitamin E milk, etc., the symptoms are serious need to use topical benadryl cream, etc., oral antihistamines such as chlortetracycline, etc. treatment. 56-year-old man appeared calf itching phenomenon please go to the hospital in time to check, the above drugs need to comply with medical advice.