I love the pathos of Wedge's opposition to Loka, but even in the next issue, when Loka is talking about how he wished someone had killed his parents and taunting Wedge into attacking him, then getting fried by the cell bars, I cannot ignore the limpet.
Half the time I just call him Captain Limpet-Face. The limpet is reaching into his mouth and nose. I can't imagine why he wouldn't have it removed; even if it had made him lose his eye and ear and a chunk of his face, he's Imperial, and Imperials love cybernetics.
It's probably just a Red Right Hand, a deformity that underlines a character's evilness. Stackpole uses this a lot - Isard has one blue and one red eye, Semtin has prosthetic eyes, Krennel has a red prosthetic hand, that one guy Thrawn helped take out had diamond-shaped pupils.