We designed the present study to determine whether JetPeel-3 , a medical device used for transdermal delivery of drugs by jet nebulization , could be used to deliver lidocaine prior to the standard multiple BTX-A injections or deliver lidocaine together with BTX-A in order to determine the protocol giving better results in terms of procedure-related pain , sweating , and patient satisfaction in subjects affected by primary axillary , palmar or plantar hyperhidrosis .