Looking at the picture, your toenail should be a fungal infection, gray toenails, I have a nail before is also a fungal infection thickened yellow, nails and flesh is still some separation, to reduce this lesion of the nails, as far as possible to cut cleanly, coated with medicine. There are a lot of medicines on the market to treat gray nails, I used an Australian ointment for foot fungus, about one month, and then the nails grew back to normal. Every time before applying the medicine try to clean the diseased nails before rubbing the medicine

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