A foot orthotic with an orthotic surface pressing against a bottom of a foot of the patient. The orthotic has a treatment area and a non-treatment area. The treatment area is arranged and formed to apply a treatment pressure under a set of tendons, that preferably includes an abductor hallucis of the foot. The treatment area applies the treatment pressure when the patient walks with the orthotic surface pressing against the foot. The treatment pressure is applied across 10-100% of a full lateral width of the abductor hallucis, and is applied along front to back length of the foot in a range of 10% to 75% of a total length of the abductor hallucis. The non-treatment area is arranged around the treatment area. The treatment pressure is higher than a non-treatment pressure that the non-treatment area applies to the foot.
