will be administered 2 ampoules (200 IU) of Incobotulinum toxin , injectable solution presentation 100 IU ampoule with powder diluted in 1 ml of 0.9% saline solution in a single application at 4 points, in addition to a therapeutic exercise program in the teaching service to later do it at home that will be done daily for 4 months (cryotherapy for 15 minutes on the plantar fascia, active mobilizations of the ankle and foot for 5 minutes, stretching exercises for the triceps surae and plantar fascia for 20 seconds, 3 repetitions, strengthening of intrinsic muscles of the foot).

2 ml of dexamethasone will be administered in an 8 mg/2 ml ampoule diluted in 2 ml of lidocaine injectable solution in a 50 ml bottle (20 mg/ml) in a single application at 1 point, in addition to a therapeutic exercise program in the teaching service to later do it at home that will be done daily for 4 months (cryotherapy for 15 minutes on the plantar fascia, active mobilizations of the ankle and foot for 5 minutes, stretching exercises for the triceps surae and plantar fascia for 20 seconds, 3 repetitions, strengthening of intrinsic muscles of the foot).

will be administered 2 ampoules (200 IU) of Incobotulinum toxin , injectable solution presentation 100 IU ampoule with powder diluted in 1 ml of 0.9% saline solution in a single application at 4 points, in addition to a therapeutic exercise program in the teaching service to later do it at home that will be done daily for 4 months (cryotherapy for 15 minutes on the plantar fascia, active mobilizations of the ankle and foot for 5 minutes, stretching exercises for the triceps surae and plantar fascia for 20 seconds, 3 repetitions, strengthening of intrinsic muscles of the foot).

zero is equivalent to no pain and 10 indicates the worst possible pain

Result of the total summative score of the American Foot and Ankle Society Scale, Excellent=90-100, Good =80-89, Medium=70-79, Poor=<70.

Result of the total summative score of the Ankle disability index scale. Absence of disability or pain = 100 Mild=80-99 Moderate=50-79 Severe:1-49 Maximum disability level = 0

Result of the total summative score of the ankle disability index scale. Absence of disability or pain = 100 Mild=80-99 Moderate=50-79 Severe:1-49 Maximum disability level = 0

Range of motion (degree of travel) or total angular/axial displacement allowed at ankle joint, dosiflexion degrees at the time of data collection, will be expressed in the results by mobility range groups according to the American Academy of Orthopedic Surgeons AAOS.