Many people find that using a foot spa is a great way to relax after a long day. However, there is some debate about how often one should use a foot spa. Some experts recommend using a foot spa every day, while others recommend only using it once a week or so.nnUltimately, the best frequency for using a foot spa depends on your individual needs and preferences. If you have very dry skin, you may benefit from using a foot spa more often. On the other hand, if you have sensitive skin, you may want to limit your use of a foot spa to once a week or less.