Since one month ago the bottom of one of my left toes has gotten a reddish color and hurts to touch. it is still like that.

Possible infection: Redness and pin are 2 of the cardinal signs that you may have an infection in the toe. See a foot doctor to find out if it is . Sometimes you can get a foreign body in the toes ( splinter etc) that becomes iflamed as well. There are certain forms of arthritis ( e.g. Psoriatic) that present with one swollen painful toe.

Pain: Pain is the body's alert to you that something needs help . See your podiatrist as this could be a lot of things - as already mentioned - and an exam will get you the help you seek.

Sounds like....: Possible long term effects from frostbite. Do you like in a mountainous region where long term exposure to cold could have occurred? If not, see a local podiatrist.