Objectives To evaluate the management of hand-foot syndrome due to chemotherapy treatment by using physiotherapeutic intervention based on photobiomodulation.Methodology: This is a case report of a female patient who was treated at the Physiotherapy outpatient clinic of a Teaching Hospital at the country side of the State of RS and was diagnosed with Grade III invasive ductal mammary carcinoma in the right breast. Approved by the Federal University of Santa Maria's Ethics and Research Committee, number 48881321.4.0000.5346, Red and infrared LED at 4 J/cm2 were applied to the plantar surfaces of the hands and feet once a week as part of the standard physiotherapeutic treatment, which also included proprioceptive, resistance, and aerobic activities.Results An improvement in skin features was seen right away after the initial application, cell regeneration and epithelial neoformation, peeling on the plantar surface of the hands and feet, a decrease in hyperemia, and a pain-relieving effect. On the palm side of the hands, complete skin peeling, a decrease in edema, hyperemia, and discomfort were seen after the second application. Plantar hyperkeratosis on the foot completely disappeared, and there was a decrease in edema, hyperemia, burning, and pain. Finally, total rejuvenation of the skin on the plantar surface of the palms and soles of the feet was seen, enabling the recovery of previously impossible daily activities. Additionally, it enabled the continuation of chemotherapeutic treatments.Conclusion The hand-foot condition brought on by chemotherapy could be effectively treated with physical therapy and photobiomodulation employing red and infrared LEDs.