answersLogoWhite

0

Well most times you can apply only the month needed. You don't want too much of this in their system. 30hrs is almost 2 days, so no i would not re apply the Frontline plus. If your dog is suffering from ticks or other problems check them out at the nearest Veterinarian Center, they will be able to tell whats wrong with your dog. :D

User Avatar

Wiki User

15y ago

What else can I help you with?