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If someone needs immediate help with trench foot, use emergency mode.
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DEVELOPMENT FIXTURE — After days in wet boots or floodwater, feet are numb, pale, swollen, or painful — immersion foot injury.
The essentials if you need to act right now.
Dry wet feet. Warm slowly. No hot water. Doctor if blisters or black skin.
What might I see? Observable signs — no diagnosis required.
DEVELOPMENT FIXTURE — Numb pale feet after hours or days wet.
DEVELOPMENT FIXTURE — Pain returning with swelling and blisters as feet warm.
Optional deeper explanation — not required to act.
DEVELOPMENT FIXTURE — Prolonged wet cold damages small blood vessels in feet even above freezing.
DEVELOPMENT FIXTURE — Common in floods, trenches, and long wet treks.
Check the scene before you approach.
Civilian-safe actions you can take.
DEVELOPMENT FIXTURE — Get out of wet boots. Pat dry with clean cloth.
DEVELOPMENT FIXTURE — Put on dry socks if available — do not force into tight wet boots.
DEVELOPMENT FIXTURE — Air dry at room temperature 30 minutes before gentle re-warming.
DEVELOPMENT FIXTURE — Check toes for colour and feeling.
When and how to get professional help.
Black tissue, spreading redness, or fever needs urgent care.
DEVELOPMENT FIXTURE — Dry, warm gradually, and monitor. Advanced wound care is medical.
DEVELOPMENT FIXTURE — Clinic if blisters, open sores, or diabetes.
DEVELOPMENT FIXTURE — 112 if foot turning black or foul smell — possible gangrene.
Dangerous actions, when not to attempt rescue, and common myths.
DEVELOPMENT FIXTURE — Do NOT use hot water bottle or fire directly on cold wet feet.
DEVELOPMENT FIXTURE — Do NOT walk long distances on damaged feet — worsens injury.
DEVELOPMENT FIXTURE — Trench foot only happens in freezing snow
DEVELOPMENT FIXTURE — Immersion foot occurs in cool wet conditions above freezing — common in monsoon floods.
DEVELOPMENT FIXTURE — Ignoring numb wet feet until tissue dies.
Other scenarios in the same family.
Cold water rescue
DEVELOPMENT FIXTURE — A person was submerged or immersed in cold water and is cold, confused, or not breathing.
Decompression sickness
DEVELOPMENT FIXTURE — After scuba diving or rapid altitude change, a person has joint pain, rash, weakness, confusion, or breathing trouble.
Heatstroke
DEVELOPMENT FIXTURE — A person exposed to extreme heat has hot dry skin, confusion, seizure, or unconsciousness.
Hypothermia
DEVELOPMENT FIXTURE — A person exposed to cold is shivering, confused, clumsy, or has stopped shivering.
DEVELOPMENT FIXTURE — Antibiotics and wound care for infected immersion foot.
DEVELOPMENT FIXTURE — Prevention: rotate dry socks and air feet daily in prolonged wet work.