I never had living grandparents but my parents, who never had a medicine cabinet and never went to doctors when I was growing up, used:
(Aspirin or Codeine and basically never used)
Beechams
Brylcreem
Nivea
Alka Seltzer
Castor Oil
A certain toothpaste that has been rebranded
Tiger Balm
Licorice root
My mother never shaved, waxed or wore make-up, except for a slick of lipstick and face powder for ‘special occasions’ And my father never used shaving cream until later years, it was a shaving brush sudsed up on a bar of soap, and a razor.