OK - I have used frontline for some time but I have always worried that its not getting to where it should because of the thick fur on the necks of Maine Coons
NO SKIN SHOWING! Both my now deceased MC and Bindi the female I have adopted had such thick fur I just could not see any skin!
The male Hector has skin

which I could SEE when I parted the fur - so no problem there
But what about where it is just a no-go seeing the skin - what do you do?