The potential causes of itchy, cracked, and red skin on the elbows include:

Dermatological diseases, including psoriasis and ichthyosis, can present with symptoms such as dryness, flakiness, redness, and itchiness in the affected areas, such as the elbows. A consultation with a dermatologist and a comprehensive examination will facilitate an accurate diagnosis.

Reducing cellular sensitivity to insulin may be attributable to metabolic and endocrine disorders. An endocrinologist is best suited to assess this problem and recommend appropriate further examinations and treatment.

In any case, it is advisable to seek the advice of a specialist to obtain a diagnosis and recommendations for treatment.

It is inadvisable to attempt self-medication or take any action to correct the situation at home, as this may prove insufficient or even contraindicated. The physician will be able to prescribe the requisite treatment and skin care regimen based on an accurate diagnosis and the patient’s individual characteristics.