Please can anyone advise what the most effective OTC spot-on flea treatment is? I did do a search but the answers seemed a bit various ...
My two cats have always had Prinovox, but the vet wants £39 for a pack of 4 now and even buying it online's getting crazy as they've started asking £40 for a prescription (each)
Obviously it has to work, but I'd really prefer to avoid spending this kind of crazy money if I can so any tips would be really appreciated