Clear blisters on the feet may be sweat herpes, infantile eczema, contact dermatitis and so on. 1. Sweat blisters: this is a blistering skin disease that occurs in the hands or feet, the cause is not completely clear, long blisters will first appear itching symptoms, and then there will be a symmetrical distribution of itchy blisters on the soles of the feet or toes on both sides of the foot, roughly the size of a pinpoint or a grain of rice, containing a clear slurry shiny, high incidence in summer. 2. Infantile eczema: infantile eczema is a high incidence of chronic skin diseases, the etiology is not completely clear, considered to be related to genetics, allergies, environmental factors, etc., most of them will appear in the cheeks, forehead a small portion of them will also be developed to the limbs, pimples, blisters and so on. 3. contact dermatitis: in the exposed parts of the body in direct contact with irritating substances, such as some kind of laundry detergent, detergent, disinfectant items, etc., will cause an inflammatory reaction, the emergence of pimples, blisters or deep in the small blisters and so on. There may also be other causes of clear blisters on the baby’s feet, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.