Brief Answer:
Athlete's foot

Detailed Answer:
Thank you for asking

I read your question and i understand your concern. Toe nail infection after wearing prolonged wet shoes are suggestive of athlete's foot and is most likely a fungal infection. You need immediate cleaning technique, topical antifungals as well as antibiotics creams for treatment. Just visit any dermatologist, they will prescribe you some terbinafine or any other antifungal cream and may prescribe some antibiotics as well with good staph coverage.

avoid prolonged wearing of shoes in future and avoid nail trimming from ends , cut them like u shape spare the edges.

I hope it helps. take good care of yourself and don't forget to close the discussion please,

Regards
Khan

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