The cause of itchy feet after foot soak may be fungal infection, allergic reaction, etc. 1. Fungal infections: fungal infections may cause itching, pain, peeling of the feet, etc. Fungi like to reproduce in hot and humid places, and if you don’t dry your feet after soaking them, the itching may be obvious. 2. Allergic reaction: some people like to add some other ingredients in the foot bath water, these substances may cause foot skin allergies, which induces itching and other symptoms, need to pay attention to stay away from allergy-inducing substances. After soaking feet produce obvious itching, to actively find out the reason, usually pay attention to the foot soaking temperature is not too high, there is obvious itching or persistent itching should be timely medical care.