I need to know how to find the class action suit against frontline, by merial. It chemically burned my poor dog, who is now bald in that spot.

There is a class about false advertising;
Flea & Tick Product False Advertising Class Action Lawsuit (http://www.topclassactions.com/lawsuit-settlements/lawsuit-news/1433-flea-a-tick-product-false-advertising-class-action-lawsuit)

But that doesn't cover your claim. Have you filed a claim with them?