What causes redness and itching of the skin?

Redness and itching of the skin may be caused by various factors. Common causes include allergic reactions, such as sensitivity to certain foods, medications, or environmental factors, which can lead to redness, swelling, and itchiness. Skin inflammations such as eczema and dermatitis may also cause redness and itching; these conditions may be related to immune system abnormalities, infections, or environmental triggers. Excessively dry skin can likewise result in itching and redness, as a lack of sufficient moisture and natural oils makes the skin fragile and sensitive. Treatment approaches for itchy, red skin include avoiding allergens, using antihistamines or other anti-allergy medications, maintaining skin hydration, and managing underlying medical conditions. If symptoms of itching and redness persist or become severe, prompt medical consultation is recommended to obtain professional diagnosis and treatment.