Varivax Vaccine Side Effects

The Varivax vaccine is used to prevent chickenpox, a common childhood illness that causes rash and blisters, itching, fever and fatigue. The disease is usually not serious, but it can be deadly for infants and adults. Chickenpox, which is very contagious, can be spread through the air or by coming in contact with the blisters.
If you receive the Varivax vaccine, you most likely will not get chickenpox. However, about 3 percent of vaccinated people will get the disease, though in a very mild form.

Mild Side Effects

• Common side effects of the Varivax vaccine include soreness or swelling at the site of injection, fever, cough, headache, loss of appetite and a mild rash.

Less Common Side Effects

• Rarely, those who have received the Varivax vaccine experience seizures. This may occur immediately after the injection or several weeks after.

Serious Side Effects

• Sometimes the Varivax vaccine results in pneumonia. Other serious side effects include stiff neck, chills, trouble breathing, unusual bruising or bleeding, and hives.

Allergic Reaction

• The Varivax vaccine can cause an allergic reaction in some patients. Swelling, itchiness, hives, paleness, weakness, heartbeat irregularities and fatigue immediately after the shot are signs of an allergic reaction that should be brought to the attention of a medical professional. Fainting or seizures in the weeks after the initial injection can also indicate an allergic reaction.

Pregnancy

• As the Varivax vaccine can cause adverse effects in a fetus, doctors recommend that pregnant women not use this medication. Women should also not get pregnant for up to three months after getting this vaccine.