If you've got cystitis talk to a pharmacist. Necking down lots of bicarb may not be a good idea for some people due to sodium content.
Aloe vera juice is soothing on small burns. Never tried it on a cut.
Lots of these OWT's are obviously nonsense - but the placebo effect can work on symptoms (but not diseases!)
Many of them are hang-overs from the days when we had no scientific understanding of the body, no scientific medicines and/or when people could not afford professional advice. My Nan used to tell me about all the remedies that were tried to cure her earache when a child in the early 1900s - the most extreme was her own wee poured in.
Talking to people in wheelchairs




but it does seem to work! (never vomited from it!)
re the cinders and the gin - the baby probably slept because of the gin.