Do flea collars really work?
No!! They work only if the flea is obliging enough to stay UNDER the collar against the pet's skin long enough to get zapped. Flea collars can be risky to your pet's health, and can cause asthma and other respiratory problems in children around pets wearing them. And let's face it--flea collars STINK!
Common problems associated with flea collar use include allergic reactions to the plastic the flea collar is made from, resulting in a red raw ring around the pet's neck under the collar. Pets can receive toxic doses of the pesticide in the flea collar if the collar gets wet; consequently, the collar MUST be removed before the pet goes swimming or takes a bath. Any time a flea collar is used, the owner needs to check daily for signs of irritation and poisoning. The only use Windmill Animal Hospital recommends for flea collars is to cut them into 4 inch strips and put them in the vacuum cleaner bag, thereby killing any fleas and flea eggs you vacuum up.