A method for providing a patient with an analysis result which the patient uses to determine a dosage of a drug for self-administration when the patient is unable to obtain the analysis result themself. The method involves gathering by the patient of information which affects the dosage, forwarding the information to an advisor who analyzes the information to obtain the analysis result, sending the analysis result to the patient, and determining by the patient of the dosage using the analysis result. The information can be gathered by the patient by using a digital camera to photograph an item of food, and the analysis result can be an amount of food. Preferably, the information and analysis result are exchanged via the Internet.