The main symptoms of flatfoot are inflammation concentrated near the foot, including various tendonitis, ligamentitis, dorsalis pedis fasciitis, Achilles tendonitis, or stubborn heel pain. Pain relief includes the following treatments: 1. avoid walking during the peak of inflammation, and even need to bind braces and casts; 2. local use of creams, or blood circulation drugs to promote blood circulation and accelerate inflammation; 3. oral medication to accelerate inflammation; 4. physical therapy such as microcurrent stimulation, infrared light to promote inflammation dissipation; 5. inflammation concentrated in a particular point of pain, such as heel pain or Achilles tendonitis, tarsal sinus syndrome, local injection can be taken to reduce inflammation.