To solve this problem doctor starts the process as per the following steps :
1. Doctor asks the symptoms of the disease.
2. Doctor measures the temperature of the patient by a thermometer.
3. Doctor examines the eye, tongue, breathe, etc of the patient.
4. Doctor notes down the facts on the prescription slip he observed from such examination.
5. Doctor presents the hypothesis for the possible disease to confirm or reject his hypothesis, doctor refers the patients for more examinations like stool examination, urine examination, blood examination, sonography, CT Scan, Xray etc.
6. Finally doctor prescribe medicines after clear understanding of the disease.