1. First of all, let’s talk about the progressive pigmented purpuric dermatosis that many people suffer from. The main characteristic is that rust-colored pepper-like purpura appears evenly on the calves. For the front part, it is not itchy and does not fade when pressed. Early-stage patients can be treated with oral vitamins, compound rutin, and antihistamines.

2. In addition, we also know that the onset of this disease is relatively slow, which can last up to 3-4 months in most cases. During the onset of the disease, there will be fine scales on the skin surface. If the itching is obvious, it can prove the existence of infection lesions, and antibiotic treatment can be appropriately applied when necessary.

3. Generally speaking, once this progressive pigmented purpura dermatitis occurs, it represents the skin's allergic reaction to various substances such as chemical agents, proteins, bacteria, and fungi. If the symptoms are relatively severe, topical corticosteroid preparations can also achieve a certain therapeutic effect.