My skin is itchy and i'm afraid it's molluscum contagiosum.how to know for sure?

Go to doctor: Only a health care provider can diagnose molluscum infection. If you have molluscum, you will see small white, pink, or flesh-colored raised bumps or growths with a pit or dimple in the center. The bumps are usually smooth and firm. The growths are usually painless but may become itchy, sore and red and/or swollen. They may occur anywhere on the body.

If in doubt...: Molluscum is unmistakable -- the dimple warts itch and eventually discharge their little white center. What if you DO have it? It's no big deal. Your physician can freeze it off you easily.