Figure 1From: The use of botulinum toxin in head and face medicine: An interdisciplinary field Left side of the picture: patient with hemifacial spasm on the right side of the face. He suffers from typical tonic-clonic cramps of the mimic muscles including the frontalis muscle and the platysma. Following BTA injections the face is relaxed and the frequency of tonic-clonic cramps is clearly reduced.Back to article page