I have a badly bruised toe. how do i treat it?

Refer to answer: Keep toe clean. Tape it to adjacent toe to keep it from moving too much. Most suspected bruised toes also are broken. To make sure see your dr.

Xray: You should get an xray to rule out a fracture if there was trauma involved. Ice and elevation of the foot will help with symptoms.

Assuming it is : Not broken, ice it. Avoid tight shoes and when walking lift up your foot rather than push off of it when you are propulsing.