[Botulinum toxin in dermatology].

Treatment with botulinum toxin (BTX) type A has become increasingly important in various clinical areas in dermatology. Particularly popular is the therapy with BTX for hyperkinetic lines associated with muscles of facial expression in aesthetic dermatology, which is the most frequent wrinkle treatment undertaken worldwide. Therapy with BTX also ranks high in curative dermatology. Injections with BTX are the most effective nonoperative therapy for hyperhidrosis. Common indications for the treatment of hyperkinetic lines with BTX are presented in this publication. Therapy of glabellar lines, which has received regulatory approval, is presented in detail. In the second part, treatment of focal hyperhidrosis with emphasis on axillary hyperhidrosis is addressed. In the hand of the experienced practitioner, treatment with BTX in a suitable area of indication is a very safe and effective procedure that leads to remarkable treatment results, associated with a very high patient satisfaction.