To remove lice from Border Terriers, you can use special lice-killing drugs. Just spray the dog on time every day. You can also give the dog a medicated bath directly. This will kill a lot of lice, and then use a wooden comb to remove the lice. If there are a lot of lice on the dog's body, you can shave the dog directly, and the lice will fall off along with the hair. Border Terriers should be dewormed regularly and bathed regularly to maintain hygiene.