There is a small pimple on the foot to pick through inside a little bit of transparent things like jelly, may be tinea pedis or hand, foot and mouth disease and other diseases. 1. Tinea pedis is a superficial fungal infection by dermatophytes that invade the skin of the foot, metatarsal, interdigital and other foot skin, in which blister-type lesions are deep in the blisters, the blisters are clearer and thicker walled and generally not easy to break through. After tearing off the wall of the blisters, bright red vesicles and honeycomb base can be exposed, and after absorption, there will be desquamation, and there is usually obvious itching. 2. Hand, foot and mouth disease: most common in children, caused by viral infections, often with a low fever, headache and other prodromal symptoms, followed by a red rash on the hands, feet, mouth, can develop into a thin-walled blisters, blisters clear. If you have pimples on your feet, you can consult a doctor in time to determine the nature of the pimples, and then follow the doctor’s instructions for treatment.