I have a bunch of small purple spots all over one part of my leg that cover a quarter of my leg that hurts a bit when touched?

Need to examine: It is not feasible to provide a meaningful opinion without additional history, physical examination and may be some tests. Your description suggests venous stasis. If you are overweight, losing weight would help. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine

Petechiae or emboli?: Without a photo or exam, one can only make a guess at the cause of the spots. Purple spots are consistent with tiny broken blood vessels (petechiae), but is unlikely to occur in only one leg. A more likely cause is emboli, which are small clots in the artery that have traveled to the small vessels or thrombosis of a vein in the leg. Please seek urgent evaluation.