What causes itchy skin with oozing and crusting?

In general, itchy skin accompanied by oozing and crusting may be caused by conditions such as eczema, urticaria, or herpes. Appropriate treatment should be selected based on the specific underlying cause. The details are as follows:

1. Eczema

Eczema is a common skin condition characterized by symptoms including itching, oozing, and crusting. It is usually triggered by factors such as allergies, dryness, or infection. As directed by a physician, wet compresses may be used for treatment, such as physiological saline or 2–3% boric acid solution.

2. Urticaria

Urticaria is an allergic skin disorder that can also present with symptoms like itching, oozing, and crusting. It is commonly caused by allergens, certain foods, or medications. Under medical guidance, oral antihistamines such as chlorpheniramine maleate tablets or loratadine tablets may be prescribed for treatment.

3. Herpes

Skin infections, such as herpes, may also lead to symptoms of itchy, oozing, and crusted skin. Topical treatments such as topical mupirocin ointment (e.g., Bactroban) or vitamin E urea cream may be used as directed by a doctor to help relieve symptoms.

In addition, psoriasis could also be a possible cause. Psoriasis is a chronic autoimmune disease marked by symptoms including skin itching, oozing, and crusting, typically resulting from immune system dysfunction. It is recommended to seek timely medical attention, where appropriate treatment will be provided based on the individual's condition. Meanwhile, maintaining skin cleanliness, avoiding allergens and irritants, keeping the skin moisturized, and refraining from excessive scratching may help alleviate symptoms.