I have these small really itchy bumps on the bottom of a foot. i need to know what they are and what i can do to treat them. ?

Contact allergy?: You may be allergic to one of the ingredients in your shoes. Consult an allergist or dermatologist to find out which ingredient is the problem so that you can purchase shoes without that ingredient. In the meanwhile , consider a sole insert to see it it helps. Topical hydrocortisone may be tried to control the rash but avoidance is the ultimate answer.