prevention before operation

I used 3 balls Arnica 200c twice daily on the day before my surgery and 2 balls 30c taken every 2 hours after surgery. The balls I used were 3mm ø and I did not have to use the Morphine syringe connected to the IV drip as the Arnica seemed to deaden the pain and promoted quick healing.

I was out of bed on the third day and the nursing staff were amazed that a 73 year old could do so without showing any serious discomfort without the morphine. I was discharged on the fifth day and walked to the car to the amazement of the staff to whom I revealed my secret when I was leaving as I feared that they may not have permitted me to use Arnica instead of Morphine.

I reduced the frequency of the dosage after the fifth day when I was discharged after my open Prostatectomy and took it 3 times daily for a month and have taken just 3 balls at night every day since my surgery.

Arnica 30 promotes deep restful sleep and may be the reason for my low BP of 120/80 with pulse 65 at age 75.

I found this in internet:

For general surgery, night before surgery, Arnica 30 one dose. The morning of the surgery, One dose of Arnica 30 just prior to the surgery, one dose of Arnica 30, and another dose immediately afterward.
For surgery involving cartilage and periosteum, Ruta 30 the evening before, the morning of the operation, and immediately afterward for 2 dose, one hour apart.

The following remedies should be given one hour after the last dose of Arnica for two days unless otherwise stated:
Spay / Neuter: Staphysagria 6 or 30, three times a day
Caesarian section : Staphysagria 30 or Bellis perennis 30, three times a day
Abortion or miscarriage: Ignatia 30, every four hours
Abdominal surgery: Staphysagria 30 or Bellis perennis 30, three times a day
Gastrectomy: Raphanus 30, three times a day
Gall bladder surgery: Lycopodium 30, three times a day
Eye surgery: Ledum 30, every four hours
Cartilage or periosteum: Ruta 30, every four hours
Involving the spine: Hypericum 30, every four hours
Surgery for bullet wounds and/or stab wounds: Staphysagria 30, four times a day
Amputation: Hypericum 30, every four hours
Hemorrhoids: Staphysagria 30 or Aesculus 30, every four hours for two or three days
Dental surgery: Hypericum 30 and Ruta 30, alternating every two to four hours
Homeopathy for Specific Ailments After Surgery
Bleeding
Arnica 30 helps to slow or stop bleeding after surgery. If Arnica doesn't work, use Phosphorus 30. For breeding of bright red blood Ipecacuanha 30. Secale 30 is effective in treating uterine bleeding.
Trauma to Tissue
Arnica topically and Arnica 6 or 30 are useful when the muscle feels bruised or swollen and when there is any pooling of blood under the skin. DO NOT apply Arnica to the broken skin. It will cause skin irritation. Hamamelis topically and Hamamelis 6 or 30 are effective for weak veins, passive hemorrhage, bleeding hemorrhoids. Calendula in external application (gel, ointment, tincture, spray) is indicated to heal wounds or incisions. Bellis perennis 6 or 30 is a remedy for use after abdominal surgery and when deep internal tissue has been traumatized.
Dose: Apply external remedies at least once a day. Generally, only two to eight doses of the internal remedy over a two day period will be necessary to complete the healing process.
Wound Infection
External applications of Calendula and Hypericum, either alone or preferably together, help to both prevent and treat infection of surgical wounds. If pus has developed and caused hypersensitivity of the wound, Hepar sulphur 30
is recommended. DO NOT use Hepar sulphur when there are stitches because it will help to push out splinters, pieces of glass, and various foreign objects that get stuck under the skin, it also has a tendency to push out surgical stitches.
If the wound becomes purplish, use Lachesis 30. If there is much burning in the wound or wound area, Sulphur 30 is helpful.
Dose: Apply external remedies at least once a day. Give internal remedies every two to four hours during the first 24 hours and four times a day for two to five more days.
Constipation
Raphanus 6 or 30 is indicated when there is constipation with no urgings for a stool and/or when there is painful gas
Dose: Give this remedy three times a day for up to four days.
Nausea and Vomiting
Nux vomica 6 or 30 is good for violent retching, especially when there is generally ineffectual retching that does not lead to vomiting. Phosphorus 6 or 30 helps to prevent or treat nausea after surgery; it is indicated when the patient has a strong thirst for ice drinks. Ipecac 6 or 30 is effective for persistent nausea with vomiting, when vomiting does not provide relief. Arsenicum 6 or 30 treats violent and incessant vomiting which is made worse by drinking water, especially cold water, or eating.
Dose: Give a remedy every two hours during intense symptoms and every four hours during less intense discomfort. If improvement is not obvious after 24 hours, consider another remedy.
Gas
Carbo veg 6 or 30 helps patient who suffer from great distention and offensive gas. Cinchona 6 or 30 is useful when there is frequent rumbling in the abdomen, and no relief from releasing gas. Raphanus 6 or 30 is a common remedy with a distended abdomen but are unable to expel gas. Colocynthis 6 or 30 is effective when there is more pain than distention, and also cramps that are relieved by bending over.
Dose: Give a remedy every two hours during intense pain and every four hours during mild discomfort. If improvement is not obvious after 24 hours, consider another remedy.

good luck!