I got small cut in my toe i was later for work and forgot my socks and my feet got sweaty in my tennis shoes. so im worried about an infection?

Calm Down.: Why worry. Chances are, nothing will come of it. Just be alert as to any change in the toe. Typically, redness, pain or swelling are the hallmarks of a impending infection. When you can, clean the wound and apply a bit of topical antibiotic. If appropriate, a band aid to finish the wound care. If a change in status occurs, the call your family doctor for advice.