Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Lice in a dream are the world with wealth and children. Many lice are torment. Killing them indicates the removal of worry. Lice in a new garment are authority, and in an old one, debt.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Lice indicate weak enemies. Their bite indicates slander from an enemy. Whoever sees himself picking lice from his garment is being lied about.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Lice are interpreted as wealth and servants. Whoever sees himself eating them is backbiting his servants.