Biofeedback
It is a non drug treatment in which patients learn to control bodily process that are normally involuntary such as blood pressure, heart rate , respiration & muscle tension.
It may help in a range of conditions, such as chronic stress , chronic pain, urinary incontinence, high blood pressure & certain headaches.
As it is noninvasive and does not involve drugs, there is a low risk of undesirable side effects.
This could make it suitable for those who wish to avoid medications, or those who cannot use them, such as during pregnancy