1. Cryoanalgesia with dichlorotetrafluoroethane spray versus ice packs in patients treated with botulinum toxin-A for palmar hyperhidrosis: self-controlled study;Kontochristopoulos;Dermatol Surg,2006
2. EMLA versus ice as a topical anesthetic;Kuwahara;Dermatol Surg,2001
3. The use of a contact cooling device to reduce pain and ecchymosis associated;Nestor;J Clin Aesthet Dermatol,2010
4. Reduction of pain and anxiety prior to botulinum toxin injections with a new topical anesthetic method;Weiss;Ophthalmic Plast Reconstr Surg,2009
5. Using a vibration device to ease pain during facial needling and injection;Kuwahara;Eplasty,2016