ForumsAcne and its treatm...Scar treatmentsSuctioning Question Notifications Clear all Suctioning Question51 With Skin MemberMember11(@51withskin) Posted : 03/11/2017 8:39 pm I have a good suction device. Should suctioning be done after TCA Cross? How about just in general after no scar treatment? Quotebeautifulambition MemberMember1750(@beautifulambition) Posted : 03/12/2017 4:05 am Suctioning is only for subcision to create hematoma with the existing blood in the subcision pocket . TCA Cross is a acid for icepicks. In general it will do nothing. Quote