Are there home remedies that are successful in treating meningitis?

No! See your doctor. Meninigitis can be a fatal condition if not properly diagnosed and treated. Although there is a difference between viral and bacterial meningitis, only a spinal tap can definitively distinguish between the two types of meningitis.
Not really. Meningitis requires IV antibiotics. There are home remedies that can help some of the symptoms during recovery, but none that actually treat the disease. Since death from meningitis is related to how fast treatment is started, delaying the proper treatment is dangerous.