What is the best/fastest way of getting rid of scars and red spots on my legs?

if you are referring to keratosis pilaris....it's bumps that people get on their arms or legs....there's no way to get rid of it...you could only treat it by moisturizing the hell out of it or out going it with age....so exfoliate plenty and use yoru best moisturizer...personally i think shea butter and oils (emu, olive, sweet almond, JoJo) works best....and than to cover up the redness...maybe use a spray tan...

Depends on the scar. If you have deep scars then you can do a laser treatment like Fraxel which will 'damage' your skin to make it grow and regenerate. If they are very superficial scars and only ont he surface then you can use a AHA or glycolic peel, or a light treatment where they shine a light over you face and then the top layer of your skin will come off, or you can use other laser treatments like Medlite which will encourage cell turnover for superficial acne scars. I have deep acne scars and even though you are recommended 5 sessions of Fraxel, I had one session and use an AHA cream, and my scars are become much more shallow and my pores have shrunk considerably. I highly recommend it for deep acne scars.