“Phosphorus given in single dose of high potency the day before an abdominal operation, will prevent nausea and other distress after operation. Arnica has been used for the same purpose.
Arnica given immediately after operation has a marked control; over shock and soreness. Aconite is preferred by some instead of Arnica. The location and character of the operation would be the influencing factors. For instance, in operations tissues that are very sensitive, such as the eye and urethra, Aconite would be more likely to be the remedy. In major operations Arnica.
Where sphincters are lacerated or stretched, not forget Staphysagria.
Rhus tox. has been a remarkably efficient remedy in relieving the soreness, restlessness and other distress after operation involving the right lower quadrant of the abdomen.
Pulsatilla is indicated where the patient lies with the hands above the head, keeps asking for air, and wants the mouth washed frequently.
Nux vomica relieves the vomiting after operation, when accompanied by much retching ; irritability of the patient strengthens the indication.
In head injuries Arnica relieves headache, dullness sleepiness and other symptoms following a blow on the head. For persistent stupor consider Opium failing which give Helleborus.