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Putting too much lime on your lawn can change the soil's pH level from acidic to alkaline. While grass doesn't do well in acidic soils, an alkaline situation can be just as detrimental to its health. Alkaline soil blocks the grass's ability to absorb vital nutrients necessary for survival. If you apply too much lime, you can reverse the effects over a relatively short time by applying commercially available products designed for the purpose or by adding compost to the soil.

Water your yard a little more deeply after a drought for about two weeks (while still avoiding overwatering). Continue to water in the early morning hours before 10 a.m. You'll also want to invest in some high-quality fertilizer to get more nutrients to your roots and help them grow back stronger and quicker. Look up your grass and soil type, or do a soil test, to see what type of fertilizer you need.

If you apply too much fertilizer to your grass, it can take about three weeks to recover. If you still have dead patches after three weeks, it might be time to remove the dead grass and overseed the affected area. Since overfertilizing can also cause problems with fungus, leading to further damage to the grass, monitor your grass color and growth for one month after over fertilizing.

Yes, in most cases, grass will return after your dog urinates on it. But without preventative measures, there’s always a chance your dog will pee on the grass again, leading to brown patches come summer. This aside, even if your grass is dead in patches, simply reseeding the dead spots should help restore your lawn. 

If you choose not to reseed your lawn, unaffected grass surrounding the dead patches will spread over any dead spots. But be prepared for this option to take longer—you likely won’t be able to grow grass fast.