public void RemoveMedicine()
{
String text = "Do You Want To Remove " + ListSelectedDoctor.Value + " ?";
DialogResult answer = System.Windows.Forms.MessageBox.Show(text, "", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (answer == DialogResult.Yes)
{
((ResidentPatient)Hospital.Patients[PatientID]).History.Remove(ListSelectedMedicine.Key);
HospitalDB.DeleteMedicine(ListSelectedMedicine.Key);
MedicalHistoryList.Remove(ListSelectedMedicine);
}
}