In your case prognosis is favorable.

 On my daughter 25 y.old on December 2020 yea endured with an acute tonsillitis, but in 3 weeks on shins, feet, knees displayed rashes. We are visited rheumatologist and used investigation good she knew about, that she is having haemorrhagic  vasculitis. And to expect  an suspicions on the disease hard, she  visited gastroenterologist, nephrologist.After  prescribed remedies used rashes are disappeared, but am still worry  for her health. Talk please about this disease, detailed,a how often happening  actutings, which consequences and which cure are?

A therm haemorrhagic  vasculitis is medical jargon, as in patients with homorganic rashes are on the legs skin, that in normal quantities of thrombocytes a blood-answers, rheumatologist, doctor Smitienko.

Haemmorhagia is blood haemorrhage, if elements on the skin are small sizes as 1 mm, they are calling petechiaes , bigger are purpura.To vasculitis which causing purpura displaying are staying as microscopic polyanginitis, granulomatous with polyanginitis. Also except are first vasculitis are haemorrhagic  rashes causing by a many groups of secondary vasculitis ,when a reason is inflammatory of vessels as vasculitis in Sjogren s disease, systemic lupus erythematous, rheumatoid arthritis. And except are endured infections are angina, flu, tonsillitis a push for development a haemorrhagic vasculitis staying an  over cooling, allergy reactions not stopping, and not matching remedies as antibiotics by penicillin raws, and not quality vaccinations.  And in a base for mechanism  for disease development lie a damage of walls small vessels with a future development inflammatory process. And in result of which a vessel wall  staying is penetrating, in a vessel space depositing febrin  and thrombotic masses. If daughter used comprehensive research and doctor said ,that it's  a not systemic vasculitis, which to   affect on kidneys damaging, lungs, bowel, nerve system, thus a speech is going about isolated skin vasculitis, its a  most favourable situation from an all possible.  Vasculitis are limited by skin, without skin expressions of covers, thus not a needing prescribing serious remedies ,as azatioprine, methotrexate  and other immune suppressants .And  about prednisolone is prescribing  on your situation on 10-20 mg/day for a few weeks. A most often rheumatologist selecting a softer  remedy, prescribing of which to decrease intensively for skin covers ,and these are hydrochloroquine, dapson, colchicine,  sulfasalazine. And in your case prognosis is OK , haemorrhagic  skin vasculitis not affect on a life, as in tight cure, diagnosis are half patients'  success curing , in other patients to achieve remission.Here  are  avoiding strong over cooling of organism, contacts with infected  patients, and not matching remedies, and less affecting for stresses.