I've now put my little ones on Comfortis and it works. Two of mine are the size of yours. I tried the new Nexgard, at the beginning of the month and it's been just terrible! It has given both small ones the runs really bad. (My middle child is around 7 lbs and it did not affect her.) I will not use it again. Comfortis is for fleas, but Nexgard is for fleas and ticks. I don't like the stuff on the back of the neck because I shampoo them often and fearful that it will wash off prior to month end. I did have a flea infestation some time ago and had to call the Bug Guy. Good luck. |