When I touch, push or stretch my arm I feel this lump that developed after the miradry procedure tug along underneath my arm? I had the Miradry procedure done in October. Although my sweating has not gone away 100% it has been a great improvement. I know it is normal to develop lumps after the procedure and the lumps have healed but one. I feel one in my left armpit. I saw some cases the lumps turn into scar tissue.