1. What do the letters E, S, T and P represent
  mnemonically?... in the acronym ESTP, or brand name ESTP cream

It's associated with an ether coal tar cream or a folk remedy or
maybe an obsolete treatment or an old brand name cream with
claims for treating crabs and maybe for other dermatological
conditions like eczema.

2. What pharmacy or apothecary prepare ESTP?

3. What stores sell ESTP?

4. What stores once sold ESTP?

5. In what countries around the world can ESTP be found?