CHICKEN POX is a very common infection and it is good to fully understand it. Read this post about chicken pox from medical professionals, learn and enjoy:

` Chickenpox is a common childhood infection caused by a virus known as the Varicella Zoster Virus (VZV).  It causes a rash of red, itchy spots that turn into fluid-filled blisters. They then crust over to form scabs, which eventually drop off.
Someone with chicken pox is infectious for about 2 days before the rash appears and until the rash has crusted over. The infection is spread by coughing and sneezing and from the chicken pox spots.
People who have not previously had chickenpox may develop chickenpox rash after 10-21 days following contact with someone with the disease. It usually begins with cold like symptoms followed by a high temperature and a very itchy vesicular (fluid like blister) rash. Most people with chickenpox have only a few spots, but in others they can cover the entire body. The spots are most likely to appear on the face, ears and scalp, under the arms, on the chest and belly and on the arms and legs. Clusters of spots usually continue to appear over 3-5 days. After about 7 days the blister dry out and scab over. 
 Severity of infection varies and it is possible to acquire infection but show few if any symptoms. More severe infection leading to hospital admissions usually occurs in people with weakened immunity (e.g. with HIV infection, some cancers and Pregnant women- where it can affect both mother and baby).  Mild cases do not normally need specific treatment as it is a viral infection and self limiting. Paracetamol alleviates the fever while calamine lotion and cooling gels ease the itching. Chickenpox generally tends to be more severe in adults. 
 To prevent spreading the infection, keep children off nursery or school until all the spots have crusted over. In the workplace staff with chickenpox should stay away from work until their doctor certifies them fit to return to work
There is a chickenpox vaccine but it is not part of the routine childhood vaccination schedule. The vaccine is only offered to children and adults who are particularly vulnerable to chickenpox complications. 
                  Once someone has had chickenpox they are normally protected from subsequent attacks
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