A "special comb" refers to a particular comb that is not like the usual ones. It could have unique features, designs, or functions that differentiate it from normal combs. Full definition
Some excavations revealed evidence for special combs to strip lice from hair, and delousing may have been a daily routine for many people living across the Roman Empire (sciencedaily.com)
Whatever eggs are miss michael kors outlet online ed using the special comb, will eventually fall off through normal brushing and shampooing of the hair. (michael--korsoutlet.ca)
Your veterinarian can use a special comb to detect fleas and their waste, so ask her to do this if she hasn't already. (farmlandvet.net)