Itchy limbs in summer, especially itchy legs at night

Itchy limbs during summer, especially severe leg itching at night, may be caused by conditions such as eczema, insect bite dermatitis, or urticaria. Treatment should be targeted according to the specific underlying cause. Detailed analysis is as follows:

1. Eczema

Eczema is a chronic inflammatory skin disorder. Prolonged exposure to hot environments in summer can trigger flare-ups. During the development of eczema, inflammatory mediators are released, leading to itching, which may worsen at night. Under a doctor's guidance, topical treatments such as calamine lotion or clobetasol propionate cream may be used for symptom relief.

2. Insect Bite Dermatitis

In summer, increased populations of mosquitoes and insects may bite the skin, causing localized allergic reactions characterized by significant itching, along with possible pain, blisters, or other symptoms. Topical medications such as desonide cream or fluticasone compound ointment may be applied under medical advice to alleviate symptoms.

3. Urticaria

In patients with urticaria, small blood vessels dilate and skin permeability increases, resulting in localized edema that appears as red wheals of varying sizes, often accompanied by intense itching. Oral antihistamines such as loratadine tablets or levocetirizine hydrochloride tablets may be taken as directed by a physician to relieve symptoms.

Besides the above common causes, other conditions such as contact dermatitis, miliaria (heat rash), or tinea corporis (ringworm) may also be responsible. If discomfort occurs, prompt medical evaluation and treatment are recommended to prevent disease progression.