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there are several good treatments for toenail fungus
but you have to start with a proper diagnosis.
you have to submit a large toe nail clipping to a lab where they can test it for fungal nail infection.
have you submitted a large toe nail clipping to a lab for testing?
insurance companies will want this lab test on your toe nail before they authorize expensive medications like Sporanox (itraconazole) to treat toe nail fungus or onychomycosis.
In fact, regardless of the fungus, many people have resistant fungus despite testing, multiple anti fungals, and it sounds like you have done this.
At this point, underlying conditions have to be consider, such as
Do you have diabetes
How is your immune system.
What is your diet.
Simply treating more and more is not adequate, and simply giving more topicals is almost never adequate.
Often one must go to an oral medication.
Even these results will be temporary if other factors are not addressed.
ciclopirox topical antifungal has to be used for 48 weeks, which is close to a year and applied for more than 8 hours before you wash or bathe. you have to clean your nails every 7 days with alcohol and is used for immunocompetent patients only with trichophyton rubrum without lunula involvement of the nail.
Sporanox or itraconazole systemic pill is a better systemic treatment for toe nail fungus
have you tried this?