How do you treat flexor retinaculum strain and extensor digitorum brevis muscle strain with insoles?

Hi there, I don’t know if anyone can help me with this case. Sorry, it is very wordy..

Hi there, I don’t know if anyone can help me with this case. Sorry, it is very wordy..

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How do you treat flexor retinaculum strain and extensor digitorum brevis muscle strain with insoles?