臀痈溃后，疮口有空腔，不易愈合，应选用的外治法是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30733' and id < 2474326 and id<>'2474326' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30733' and id > 2474326 and id<>'2474326' order by id asc limit 5