hello,there are various causes of pruritus or itching of the skin without any lesions, here i will enumerate i think are relevant in your case:-1. due to deranged liver function:- this causes itching all over the body due to raised bilirubin levels in the blood. in your case, that might be possible2. due to low hemoglobin:- due to the surgeries that you went through, that might have been possible3. dryness of skin in cases of elderly individuals4. diabetes:- just in case you have a history.i will suggest that you undergo a routine blood test like complete blood count, blood sugar levels, both fasting and post prandial, and liver function tests to rule out the above causes.however the treatment would remain the same. that is:-
* tablet fexofenadine 180 mg once in the morning and tablet hydroxyzine 25 mg once daily at night for 3 weeks.
* application of moisturizing lotion like vaseline lotion thrice a day. you could apply it immediately after bath on wet skin itself.