The live attenuated varicella vaccine is necessary because it provides immunity to chickenpox. The vaccine may not prevent chicken pox, but even if it does not, the symptoms of chicken pox can be reduced accordingly, so the live attenuated chicken pox vaccine has some effect. The majority of cases are able to prevent chicken pox attacks, and should still be played, only because it is self-funded, so the cost will be a point of consideration. In addition, during the injection of live attenuated varicella vaccine, try not to have a fever or a relatively low immunity and other signs of discomfort. If you get the live attenuated varicella vaccine, it is normal to have a fever or be uncomfortable because it is not an inactivated vaccine. The chickenpox vaccine can also cause the chickenpox virus to multiply after it is injected into the body, but the multiplication is low and the body’s immune system is usually able to control it.