How do I prevent infection in wilderness first aid?

Question

Accepted Answer

Initial Wound Cleaning Copious water irrigation removes bacteria and debris more effectively than any other first aid measure. Soapy water works better than plain water but plain water is acceptable. Pour water from height allowing current to flush away contamination. Scrub surrounding skin with soap removing dirt before cleaning the wound itself.
Dirt and Debris Removal Embedded dirt must be removed—leaving contamination dramatically increases infection risk. Gentle brushing or picking removes most foreign material. Some pain is acceptable during cleaning—infection pain becomes far worse. Patience during initial cleaning prevents complications.
Antibiotic Application Topical antibiotics reduce infection risk substantially. Over-the-counter antibiotic ointment (Neosporin) is standard. Honey provides antibacterial properties if commercial ointment is unavailable. Apply thin layer over wound before dressing. Reapply with each dressing change.
Dressing Selection and Management Clean cloth or commercially available bandages protect wounds from contamination. Change dressing daily or immediately if it becomes wet or dirty. Allow limited air exposure improving healing. Change dressing whenever pain increases suggesting infection.
Infection Recognition and Response Increasing pain, swelling, redness, or pus indicate infection development. Warmth in surrounding skin suggests systemic infection. Fever accompanies moderate infection. Mild infection might resolve with excellent hygiene and observation. Significant infection requires evacuation—antibiotics are necessary at that point.