Whirlpool therapy, or hydrotherapy, is one of the oldest adjuvant forms of treatment for wounds still in use today. This is a device used to help manage the inflammation and swelling in the injured body part. Specialized Podiatry Whirlpools provide the ultimate in hydrotherapy treatment for the foot and ankle areas. Hydrotherapy creates a soothing, cleansing and relaxing treatment for the patient that aids in rehabilitation.