TMS treatments feel like a tapping on the skull. TMS is essentially painless because the induced current does not pass through the skin, where most of the pain nerve endings are located. In clinical trials, less than 5 percent of patients treated with TMS Therapy discontinued treatment due to side effects.
However, there are some side effects that may cause mild to moderate discomfort. The most common side effect is scalp irritation and headaches. These and all observed side effects are acute and should only last temporarily.