The foot is itchy at night, consider tinea pedis, eczema, contact dermatitis, etc..
1. Tinea pedis: this is a fungal infection of superficial fungal disease, such as red trichophyton, will involve the foot between the toes, foot side edge, etc., can be transmitted through direct contact infection or with the patient to share the use of shoes, socks, foot basin, etc. each other, which blisters tinea pedis will be obvious itching, between rubbing vesicles tinea pedis will feel itchy, both types of tinea pedis secondary to bacterial infection when the symptom will be aggravated, and accompanied by a bad smell.
2. eczema: this is an inflammatory disease of the superficial dermis and epidermis caused by a variety of internal and external factors, which can occur in any part of the body, acute eczema and subacute eczema will appear intense itching, and plasma oozing after scratching.
3. Contact dermatitis: If the feet are exposed to some easily allergic substances at night, such as some kind of cleaning solution, soap, etc., the skin surface will produce an allergic reaction, allergy will be severe itching.
Feet at night on the itchy should be timely to the hospital, identify the cause of the medical treatment, usually to maintain foot hygiene.