Not the same, soaking feet promotes blood circulation and contributes to health, while a hair dryer just blows feet hot, which are two different concepts.

According to the meridian theory, there are 66 acupoints below the ankle starting from the Sanyin meridian (spleen, liver and kidney). Winter is due to cold. Cold stimulation, foot vasoconstriction and blood circulation disorder are easy to induce many diseases. Soaking feet with hot water can improve local blood circulation, dispel cold and promote metabolism, thus playing a role in health care.