Did they not sell you tick pullers??The frontline will take 24hrs or so to kill the ticks but you'll still have to remove them.I ferret sheep land & i frontline my ferts but they,ll pick the odd one up around the eyes,inbetween the toes.If you get tick pullers you'll have 2 sizes use the small one around the eyes,ears & other arkward places,just neck the fert & get as many as possible however some may be to small & you'll have to wait till they grow.Check the National Ferret Welfare Society website to find the nearest ferret friendly vet to you & they'll keep you right or