There are plaques that may be related to hyperpigmentation, dermatitis eczema, allergic purpura and other conditions, which need to be eliminated through general treatment, use of medication (loratadine, etc.), physical therapy, etc., depending on the cause.
1. Hyperpigmentation: generally refers to pigmentation, chloasma, coffee spots, age spots and so on, which are generally related to hyperpigmentation. If the plaque is shallow, it can be improved by applying hydroquinone cream and other medicines. If you want to eliminate it completely, you can get rid of the plaque by laser treatment, but you have to pay attention to sun protection after treatment.
2. Dermatitis and eczema: atopic dermatitis and chronic eczema can cause red patches with itching on the skin, which can be eliminated by topical glucocorticosteroids such as mometasone furoate and other topical calcium strip phosphatase inhibitor tacrolimus.
3. Anaphylactic purpura: manifested as purple spots or plaques, does not fade after pressing. It can be treated with antihistamine drugs such as oral loratadine.
In addition, the plaque may also be caused by other reasons, due to the complexity of the cause, we need to consult a doctor in a timely manner, as prescribed by the examination and treatment.