Well broken-in old pair of loafers may also be doing you more harm than you think. Sometimes we stick with the same shoes longer than we should. Check your footwear: A dead giveaway is unevenly worn heels. If the bottom of the heel is at an angle to the bottom of your foot, get new shoes. Avoid flat-bottomed shoes: Plantar fasciitis may flare up when people walk around in footwear that offers no arch support, like sandals and boat shoes, or walk barefoot. Use support insoles: Wear shoes with removable insoles. These are not merely cushions; they have a raised area that physically supports the arch.