Seeing “flea”
in your dream

Any leaping bloodsucking insect when seen in a dream represents a weak person who uselessly occupies himself at defaming others. Fleas in a dream also represent Allah's soldiers. If one sees an army of fleas stinging him in a dream, it means threats and distress caused by a rubbish type of people. A flea bite in a dream also means earnings. A wounded flea in a dream represents a weak enemy and its blood represents receiving money from a lowly person.

Fleas are the soldiers of Allah, which He used to destroy Nimrod 
(descendant of Ham represented in Genesis as a mighty hunter and a king of Shinar), according to Ibn
Siren.
Conversely, the flea symbolizes a mean person who likes to humiliate and stab people. Dreaming of being bitten by a flea 
(or any bug) means one will earn money.

See Flea.

(Any small, blood sucking insect.) Seeing a bug in a dream means facing a weak enemy. If a small bug enters one's body in a dream, it means that a poor person will visit him to receive some mental satisfaction or to solicit a small financial support. (Also see Flea)