The child heel aches, how is the character?
Before the age of seven or eight, children's foot bones and cartilage tissues are still very soft and highly plastic. Any foot injury in this period will not only cause foot discomfort and pain, but also affect the future development of the foot. As you said, when I was a child, my feet were splayed inside and turned outside (when I was splayed outside). Long-term eversion of feet will not only damage the lateral side of knee joint, but also damage achilles tendon. I think the heel pain you mentioned may be caused by an achilles tendon injury. I suggest you find a special podiatrist and use some corrective appliances, such as corrective insoles. The correct correction method can get twice the result with half the effort and has no side effects on children. That's all, hehe.