Keep away from internal meds,tough on the kidney's and liver,my breeder and the U of M doesn't endorse any topical meds because they are so toxic,read the label on these meds,they suggest you wear rubber gloves when applying,most work but at a price on your pup's health.Looking into the new collar thats out,good for 9 months.
Frontline works well but very toxic,May and June I keep my pup outof the long grass and burn what I don't mow just for ticks,my home county has the highest lyme per capita in the state, ticks lay dormaint until september until a hard freeze in october during summer months.