3. SIDE EFFECTS
Sedative effect
During a treatment session, there is a sedative effect
which is accompanied by a reduction in vigilance and a
tendency to fall asleep. This prohibits the use of Cefaly®
Dual while driving or during a dangerous activity that
needs to be alert and focused.
Skin reaction
At the end of the session, the skin on the forehead may
become reddened where the electrode was placed.
This is caused by stimulation of the blood circulation.
Depending on the individual, this redness can last for a
few minutes or more after the session.
In very rare cases an allergy to the acrylate of the
electrode gel can arise. A temporary rash gradually
develops on the forehead. If this should occur, stop
using Cefaly®Dual and contact the manufacturer
CEFALY Technology to order special electrodes. The skin
rash will gradually disappear within in a few days. The
use of an anti-inammatory cream can accelerate the
disappearance of the rash.
Pain during the session
A portion of people may perceive the sensation
produced by the Cefaly®Dual during the session as
painful. In most cases habituation and tolerance to the
feeling settle in a few days or weeks. However, there is
still a small percentage of subjects for whom the feeling
is painful despite regular use.
