Pain in the heel of a child's foot, typically brought on by some form of injury or trauma, is sometimes Sever's Disease. The disease often mimics Achilles tendonitis, an inflammation of the tendon attached to the back of the heel.
A tight Achilles tendon may contribute to Sever's Disease by pulling excessively on the growth plate of the heel bone. This condition is most common in younger children and is frequently seen in the active soccer, football or baseball player.
Sport shoes with cleats are also known to aggravate the condition.
Treatment includes calf muscle stretching exercises, heel cushions in the shoes, and/or anti-inflammatory medications. Consult your physician before taking any medications.