Muscle strain, ligament damage, heel discomfort, nerve irritation, oedema, inappropriate footwear, and occasionally gout or arthritis can all cause pain in the left foot as it touches the ground. For a few days, give the foot as much rest as you can, refrain from running or walking too much, and wear soft, comfortable shoes. Pain and swelling may be lessened by applying ice for 15 to 20 minutes many times a day. If appropriate for you, paracetamol may alleviate minor pain. See an orthopaedic physician for an examination or X-ray if you have swelling, redness, fever, numbness, severe pain, a history of injuries, or trouble walking.