@noe73 There are several salves that can be useful for treating most of the things you may encounter. Thes meds aare used in Germany. I have included the Active ingredients as I expect if you searched on that you would find the US equivalens.
BED SORES
MEDICATION IVP-JOD Antiseptic
ACTIVE INGREDIENTS AND OTHER MEDICATION
Povidon-lad, 100 mg/g Salve: The PVP-JOD AL Ointment is an antiseptic with the active ingredient povidone iodine, especially for use on the skin and wounds. It is suitable for repeated, time-limited treatment of damaged skin such as decubitus, lower leg ulcers, superficial wounds, burns and infected skin diseases.

RASHES /ITCHING
MEDICATION Ecural Fett Creme
ACTIVE INGREDIENTS AND OTHER MEDICATION
Active ingredient:Mometason furoate
Ecural is a medicated cream to treat various inflammatory skin conditions. Mometasone furoate reduces inflammation and associated symptoms (itching, swelling, and redness). It is in the class of moderately potent to potent steroids. It reduces symptoms by suppressing inflammatory processes in the skin and minimizing the immune response, which is the root cause of the problem, as skin overreactions are one of the triggers for dermatoses.
The use of this medication is particularly indicated for dermatoses such as psoriasis, eczema, and allergic skin reactions
BRUISES
MEDICATION Heparathrombin Heparin
ACTIVE INGREDIENTS AND OTHER MEDICATION
Heparathrombin Heparin-Active Ingredient: Contains an active ingredient from the group of mucopolysaccharides with heparin sodium. This group is characterized by anticoagulant activities and reduces swelling. in case of acute swelling conditions after blunt injuries (bruises/bruises).
Heparin Heumann Cream is used for supportive treatment of acute swelling blunt injurie injuriess (bruises/bruises).