Foot odor is a common disease! A common question asked by patients in the clinic is: “Why does my foot odor never go away? I can apply ointment for a few days, but within a few days, it will come back.” This always leads to a lot of explanation. What is the cause of foot fungus that can never be broken? Here is a brief description, I hope it will help you to understand where the problem lies. There are two main types of reasons for not being able to break the root: relapse and re-emergence. Relapse, the fungus on the foot is not completely removed, after the irregular use of topical antifungal creams, the fungus is temporarily inhibited, less active, clinical symptoms have been reduced, stopped using the drug, a few days later, the fungus was not killed, the resurgence, again multiply, foot odor occurred again. In the case of recurrence, the fungus on the foot has been completely removed, but because of inattention to personal hygiene, the fungus is infected again, such as stepping on dirty water on a rainy day, sharing slippers, etc., and the fungus infects the foot again, causing the foot odor. There are a variety of common treatments for foot odor on the market: what water ah cream, there are, but the efficacy varies, even if effective, but also temporary relief, can not solve the problem at the root. So what exactly is the reason why foot odor can not be completely cured? Reason 1: There are a variety of fungi that cause foot odor, such as dermatophytes, microsporum canis, Trichophyton rubrum, Candida albicans, etc. These fungi are not sensitive to all antifungal drugs, and at the same time, each antifungal drug is not effective for all fungi. The same foot fungus, infected with different fungi, then the treatment effect is not the same. A cream that works for others may not work for you. In addition, when foot fungus occurs, the infected fungus may not be one, but usually a mixed infection, which makes it difficult to cure completely. Reason 2: Even if the ointment used is effective, it is difficult to achieve full coverage when using it. Because the places where you apply the cream are serious symptomatic areas, but the fungal infection is not only limited to these areas. For example, if your 4th or 5th toe is eroded, you may mistakenly think that only this toe has fungal infection, so you put the cream on this location, but there is no lesion elsewhere, so you will not apply the cream. In fact, the distribution of the fungus is much larger than the clinical manifestation of the lesion, and applying only the lesion can relieve the serious symptoms, but it cannot completely remove the fungus from the foot. Therefore, it also lays a hidden danger for recurrence after stopping the medicine. Reason 3: The fungus has a dormant period. Fungi sprout and multiply and grow when conditions are right, and this is when they are most easily killed by antifungal drugs. However, when the external conditions are not good, the fungus chooses not to grow and turns into spores, because the walls of the spores are thicker, it is difficult for the drug to penetrate in, so it is also difficult to eradicate the fungus. When the external conditions are ripe, the spores will start to sprout and multiply again, and a new round of infection will come again. Cause 4: Re-infection with fungus. Summer is a high season for tinea pedis, why? There is a lot of rain in summer, and people often wear sandals, so the chances of stepping in dirty water are greatly increased. Because the environment is full of fungi, in time for the rainy season, chopsticks will grow hair and moss on the walls. As a result, many patients go to the hospital about a week after stepping in water on a rainy day and undoubtedly have tinea pedis. In addition, sharing slippers among classmates, colleagues, and family members is also a major cause of foot fungus. Many people have a similar experience: I didn’t have foot fungus, but I got infected with it after wearing someone’s slippers. This is true, so avoid sharing slippers with others to avoid cross-infection. Reason 5: Gray nails are one of the most stubborn bunkers. It is like a strong bunker that is swept flat around, but it is still solid. Because the fungal infection is deep to the nail bed, the drug can not reach, while the nail plate is thick, the drug is not easy to penetrate. It’s like having a ticking time bomb next to the nail, and there’s a possibility of it coming back. Therefore, a complete cure of the gray nail is also an important step to prevent the recurrence of tinea pedis. As mentioned above, the recurrence or reoccurrence of pediculosis is caused by multiple factors. Knowing these causes, then there is a direction to prevent the recurrence or reoccurrence of foot fungus. Foot fungus is an infectious disease that can be cured, so you should not worry even if you have foot fungus or gray nails, as long as you find the right method, it is no problem to cure it.