Carry more medical gloves (I only saw 2 pair). I know that infections can be sorted out at hospital but they weigh next to nothing and can easily slipped into your front pocket.
I doubt if any one is unfamiliar with the saying "better to prevent than to recover" (or summing)

I can never carry enough water, not only for myself but also for other members.
When I go out with the rest of the family they always rely on me to bring the water and food.

For your PSK several condoms or oven bags would be a good idea.

How many triangular bandages do you carry?
Anti Burn cream.
I have been told that you should never put that on a serious burn because when the patient is moved to hospital and the doctor wants to treat the wound he/she will first have to scrape the cream off.

reinhardt