Dealing with lice problem in the trenches
1. Soldiers crushed lice between fingernails and removed their eggs from the seams of their uniforms with fingernails or by running a candle up and down the seams
2. Fumigation of clothes with insecticide chemicals passed through in steam or smoke
3. High temperature laundry and steaming
4. Disinfecting clothes and bedding
6. Setting up mobile showers to improve personal hygiene
7. Issuing replacement uniforms when infestation was severe