Soreness needs to be treated. The pressure in the foot's fascia needs to be reduced and recovery needs to be supported. An important part of reducing the load is the stretching of the gastrocnemius and soleus muscles. A variety of research studies have shown that it is quite beneficial, so it is an integral part of the treatment plan. https://www.blogarama.com/health-and-fitness-blogs/1354309-FootStoreau-Blog/68985433-should-you-use-night-splints-for-plantar-fasciitis