In my book HSP is hereditary spastic ataxia !. This would call for very different treatment . Vasculitis - end with '-itis' and implies inflammation. Arthritis also ends with " -itis " and both would imply that some inflammatory medical condition has been suppressed with antibiotics.
From a homeopathic point of view the original condition needs to be rooted out on the way to a permanent cure. Anti inflammatory drugs will end up creating a chronic incurable condition.
Easy bruising would indicate weak walls to blood vessels which could also be dealt with homeopathically.