My mother told us we would get 'Lockjaw' if we came home dirty after playing in soil or dirt. I think it might be another name for Tetanus.
My dad called every illness we had 'The Dreaded Lurgy' which I believe was invented on the 'Goon Show'. He was a great fan!
The cure all for any stomach ailment, which my mother swore by, was Brown's Chlorodine. I googled this and found that it consisted of
a mixture of laudanum (an alcoholic solution of opium), tincture of cannabis, and chloroform. Mind you we had the same bottle for years - no sell by dates in those days. Who knows whether this made it stronger or weaker!