In my humble opinion, the need for field use of antibiotics is limited.

Most intestinal boughts of vomiting and/or diarrhea are generally self-limiting. Dehydration is the major concern and can be dealt with though the use of diluted sport drinks, re-hydration/electrolyte formulas:

(http://www.diarrhoea.org/dehydration/treatment_plans.htm) “What is ORT?
ORT is the giving of fluid by mouth to prevent and/or correct the dehydration that is a result of diarrhea. As soon as diarrhea begins, treatment using home remedies to prevent dehydration must be started. If adults or children have not been given extra drinks, or if in spite of this dehydration does occur, they must be treated with a special drink made with oral rehydration salts (ORS). The formula for ORS recommended by WHO and UNICEF contains:
· 3.5 gms sodium chloride
· 2.9 gms trisodium citrate dihydrate (or 2.5 gms sodium bicarbonate)
· 1.5 gms potassium chloride
· 20 gms glucose (anhydrous)
The above ingredients are dissolved in one litre of clean water. WHO has recently recommended a change in the complete formula, replacing 2.5 gms of sodium bicarbonate with 2.9 gms of trisodium citrate dihydrate. The new formula gives the packets a longer shelf life and is at least as effective in correcting acidosis and reducing stool volume. Packets containing sodium bicarbonate are still safe and effective.”

In the absence of culture and sensitivity, even the best health care provider is taking educated pot shots at treating infections. Which is why when it becomes absolutely necessary in the field to treat an infection, a variety of antibiotics or the use of a broad-spectrum antibiotic is necessary.

Infections due to lacerations, can be effectively prevented though appropriate wound irrigation and cleaning techniques. As with many health related conditions, individuals in generally good health will be able to ward off many infections though the body’s natural defense mechanisms. Pete