The short answer is YES, your lawn will eventually recover from a chinch bug infestation. However, the severity of the infestation will determine how long it takes for your grass to fully recover. A light infestation may only result in some brown patches in your lawn, while a heavy infestation can kill large areas of grass. The good news is that chinch bugs are not usually fatal to grass, so with proper care and treatment, your lawn should be able to bounce back relatively quickly.