Have spur on the back of my foot and below my heel. achilles tendinitis (visible on the back of my foot). pain is excruciating 24-7-365. what can i do?

Over used heel.: It sounds like you are describing a posterior calcaneal spur with associated Achilles tendinitis. Stopping, or severely reducing, the pull of the Achilles tendon is the first line of treatment. Application of heat and/or cold will help, but the tendinitis inflammation must be reduced and off loading is the best way. Elevated heels on your shoes may help. An evaluation by a specialist is needed.