Nummular psoriasis is a chronic skin condition that causes itchy, swollen, coin-shaped patches to develop on the skin. Although the symptoms can be uncomfortable, they can be treated with antihistamines and topical medications.

Fungus is one of the skin diseases. Although the disease is not life-threatening, it makes the patient uncomfortable, itchy, affecting daily life. The causes of itching, if not treated properly, will cause the fungus to grow stronger, causing more itching.