Offering you some words of advice. You've stated this is a re-occurring wound that has been surgically closed before. I believe you are wheelchair (WC) bound (correct me if wrong) so these are things I would be concerned about. Will defer any talk about wound care now since you had surgery and have wound care orders
Pressure ulcers develop from prolonged pressure on body area, shearing forces (rubbing or dragging skin against fabric/mattress/ wheelchair arms), poor nutrition, circulation problems and in persons predisposed to diabetes. Healed skin is different than regular skin in that it doesn't have the same elasticity so it doesn't stretch as easily and can develop thickness which rubs underling skin layers.
Things you can do to help yourself:
1. Pressure Reduction and elimination of shearing forces:
Suspect you spend a good deal of time in Wheelchair. I would make sure you had extra foam padding on armrests covered with sheepskin pad to add extra cushioning. Persons in whelchairs tend to sit with their arms bent at 45 degree angle for hours without moving arm. I would suggest you dangle your arm every 30 min-1 hour (every time TV show changes/end of meal) to decrease tension on elbow incision once splint removed and remember to do this for rest of your life. Don't know if you wear an elbow protector but would do this for at least first three months post surgery.
Example of protector:
Proper body mechanics is important---has physical therapy evaluated you to make sure you have good positioning while sitting?
4th Basic Principle - Provide Substrates for Healing
Protein & Caloric Needs with Chronic Wounds
Protein Requirements = 1.25->1.5 Grams of protein per kg of body weight per day
Caloric Requirements = 30 - 35 calories per kg of body weight per day. If the person is unable maintain an adequate food intake high nutritient supplements should be used to meet the nutritional needs.
Necessary Vitamin and Mineral Supplementation & Wound Healing
Vitamin A -> Multivitamin daily
B Vitamins -> Multivitamin daily
Vitamin C -> Multivitamin daily
Zinc -> 220 mg/ day in presence of deficiency
Iron -> Supplement only if no active infection
From: Chronic Wound Healing by Rita A. Frantz PhD RN FAAN
What this means is that you should eat an extra serving of meat/fish/chicken/egg/cheese each day--size of deck of cards and drink carton of milk. Even peanut butter sandwich at bedtime helpful---in addition to three meals daily. Include carrots/yams/sweetpotatoes/orange juice (Vit A + C), green leafy vegetables/brocolli/enriched bread-Rye , Wheat etc (Vitamin B), Liver and raisins/dates (Iron) in your diet.
Most wound care doctors in my area have patient take a Multivitamin with Zinc daily. Some are using the supplement L Arginine too.
My Dad had a bloodclot in his leg this year post surgery resulting in a black toe--doctors thought he would loose it. I had him drink Resource type supplement called Arginaid (has L-argine in it)---was able to get trial case for free. Along with good nursing and wound care, He was healed in 10 weeks! Ask the Dietician at your facility if this would help you.
Good Luck and Good healing!