Whether long blisters on the feet is foot fungus, from the following aspects to answer this question: 1, tinea pedis: mainly in the toes between the appearance of vesicles, accompanied by itching, at the same time, there will be blisters, in the clinic most often in the foot tinea pedis, also known as foot fungus, is a fungal skin disease, so in the treatment, can be applied to biphenylbenzazole cream and tretinoin econazole cream mixed topical, serious cases also need to orally take terbifen hydrochloride tablets. 2, eczema: mainly due to internal and external factors caused a chronic inflammatory pruritic skin disease, pimples, blisters, rice granule-like blisters. 2, eczema: mainly due to internal and external factors caused by a chronic inflammatory itchy skin disease, can be seen in the feet of symmetrical erythema, pimples, blisters, blisters, rice-like blisters, and accompanied by itching. In treatment, desensitizing medication can be applied, such as oral compound glycyrrhizin tablets and ebastine tablets. In the external medicine, if it is rice-like blisters, then you can apply glycerite lotion for external use, if the blisters broke, you can apply compound cypress lotion for local cold wet compress, then comfrey oil and epidermal growth factor gel mixed for external use. 3, trauma, scalding caused by blisters: such as hot water or hot oil caused by the dorsum of the foot scalded, there will also be blisters, this time, you can apply iodine povidone disinfection, with a sterile syringe to draw blisters treatment, and then zinc oxide oil for external use, but also oral roxithromycin capsules. Therefore, the answer to the question of whether the blisters on the feet are foot fungus can be derived from the above answer.