Our product is the first tracker for the lymphatic activity, featuring a unique combination of microarray patches technology and optical wearable device. The microarray patch imbeds a fluorescent agent and is applied on the surface of the skin using an applicator. The optical wearable device measures the fluorescence intensity of the fluorescent agent over time of the patient which reports on the level of lymphatic drainage efficiency. This result is then transferred to the patient’s smartphone as well as to the physicians. The physician can then decide for the most appropriate care and treatment specific to each patient.