This review examines the application of light therapy, including photobiomodulation, fluorescent biomodulation, and photodynamic therapy, in veterinary dermatology. It explores the mechanisms of action, key treatment parameters, and clinical applications, focusing on how light absorption influences tissue healing and other biological processes. Dermatological indications supported by existing studies and case reports such as wound healing, bacterial skin infections, and other conditions are highlighted. Finally, this review outlines future research directions, emphasizing the need for large-scale, randomized controlled trials and standardized treatment protocols to establish the long-term efficacy of light therapy in veterinary medicine.