I would be pleased to answer your question .
Thanks for the query posted .
From your description they sound like Acneiform eruption . These are painful and need proper Dermatology treatment with the help of Glycolic acid
They are not in any sense related to the Transverse Myelitis
(TM). HOwever if you have been prescribed steroids
for the treatment of TM then you might get them.
Thanks and take care