Revolution unfortunately isn't the best product out there for ticks. If you want to get picky, it is only labelled to control two species of tick (which may just be related to what they tested on vs what it really is effective against). The major problem is that the ticks actually have to attach and ingest some blood before it will kill them‚Ä¶ So.. if you leave them on there, they should die, but whether they will have had time to transmit any tick borne disease - little bit of a question. That being said, I don't think any of the products out there have a label to prevent transmission of tick borne disease. There are some other products out there that kill the ticks a little faster, but they are not as broad spectrum as Revolution, so often you end up needing 2 different products, the second to control GI parasites. Worth a discussion with your vet if you are finding yourself often in tick infested areas, especially in spring when there are more of them out there, and careful usage, especially if you have cats due to potential toxicity issues.
Same story as on people to get them out. Fine tweezer, or one of the ones that MEC and other outdoor stores carry, make sure you get the head, and sometime worth keeping them aside for potential future testing, in case someone comes up sick later.
If you want to get more info on ticks (or other parasites generally), this website is great, but might be a bit heavy:
This is their 'light' version, for pet owners:
As per the first link for treatment: (Selamectin is Revolution, which they talk about in the last paragraph)
Regular application of acaracides is often necessary to protect the dog or cat from ticks and the diseases they transmit.
In North America, several topically administered acaracides appear to have the greatest efficacy against ticks: amitraz (available in a spot-on formulation and impregnated collar), fipronil (available in spray and spot-on formulations), and pyrethroids (synthetic pyrethrins) that include deltamethrin (available in spot-on formulation and impregnated collar), flumethrin (impregnated collar), and permethrin (available in spray and spot-on formulations).
Amitraz, deltamethrin, fipronil, flumethrin, and permethrin may help prevent tick attachment and cause tick death within 24 to 48 hours. Certain pyrethroid formulations may also produce repellent-like activity.
Amitraz, fipronil, deltamethrin, flumethrin, and permethrin formulations can be safely used on dogs, but only fipronil and flumethrin are approved for use on cats.
Published data indicate that selamectin kills R. sanguineus and D. variabilis on dogs, but selamectin's slower speed of kill may not be clinically acceptable in heavy tick infestations.