A medical system comprising: an analyte sensor for receiving an analyte signal corresponding to an analyte concentration of a user； a health monitor device comprising a display unit and in communication with the analyte sensor, the health monitor device comprising a processor and memory communicably coupled to the processor, the memory including instructions stored therein that, when executed by the processor, cause the processor to: receive the analyte signal from the analyte sensor； determine the analyte concentration based on the analyte signal； calculate a recommended medication dosage based on the analyte concentration； associate a current parameter type with the recommended medication dosage； associate the current parameter type to at least one corresponding stored historical parameter type associated with a historical medication dosage； and display, on the display unit, the recommended medication dosage and the historical medication dosage.
