Bruiser was somewhat despondent for a day but Rocki was SICK...lethargic, shaking, didn't eat. I did some research online and found that many dogs got sick from this "preventative" measure and indeed, some even died. I toyed with taking him to the vet but he slowly got better and I never did do that. What I did note was that even with the treatment, they still had the odd tick that was immune to the chemical cocktail in their systems and still had to be removed. However, it stuck in my head that there must be a better way to treat them for ticks without them getting violently ill from commercial products.
After much research, I discovered that Geranium Oil (which can be purchased at any health food store) was recommended for ticks. So, my boys became guinea pigs in my Shih-Tzu lab. I bought the oil and applied it between the shoulder blades and then let them out. No ticks. I reapplied it after a couple of days. No ticks. They run in the grass and we own part of the forest behind the house where they run - no ticks. So what are at the side effects of Geranium Oil? Nothing...except your dogs smell like geraniums. Which could be a good or bad thing depending on your sense of smell!
I am not totally against commercial products. Indeed our vet told us about two prescription products I could consider for the boys. I told her what I was using and she said to be careful of the baby ticks which are hard to see. Also she is concerned, of course, with lyme disease. But, because my dogs are not "outside dogs" they are not exposed as much. I refer to them as "deck dogs". But I am considering a prescription product only because we are supposed to be facing one of the worst seasons for wood ticks due to the sheer numbers predicted for this year.
My vet admitted she had never heard of Geranium Oil to prevent ticks but she told me if it works, then that's fine. One of the reasons she said this was because one of the prescription products may cause seizures in dogs susceptible to them. Well, my little Rocki has had seizures and I told her that. But she did say keep an eye out for any ticks on the dogs and that I could come by and get the prescription anytime.
So I'm still waiting and watching while reading brochures on the products the vet is recommending. And my boys smell like geraniums!