Quotation from: Manual of Surgery

Written by: Alexander Miles and Alexis Thomson

#Multiple subcutaneous tuberculous nodules# are met with chiefly in
children. They are indolent and painless, and rarely attract attention
until they break down and form abscesses, which are usually about the
size of a cherry, and when these burst sinuses or ulcers result. If the
overlying skin is still intact, the best treatment is excision. If the
abscess has already infected the skin, each focus should be scraped and
packed.