private void btn_entermedication_Click(object sender, EventArgs e)
        {
            EnterMedication em = new EnterMedication();

            this.Hide();
            em.Show();
        }
 private void btn_entermedication_Click(object sender, EventArgs e)
 {
     EnterMedication em = new EnterMedication();
     this.Hide();
     em.Show();
 }