ඕක අනිවාරෙන් හැදෙන්න ඕන එකක්ද මට තාම නෑනෙ
Get the Varicella vaccine. It's highly effective and lasts for at least 10 years and might be for more than 20 years. Immunity studies after 20 years show that it's still effective.
Another factor is Shingles.... It causes a quite painful rash. After you got chickenpox, the virus lies inactive in nerve tissue near your spinal cord and brain. Many years later, the virus may reactivate as shingles.
When you are older, around 70 years , then there's a Shingles (Herpes Zoster) vaccine.