You're going to die. Right after your balls fall off. In about a week.
OR
Scrotal dermatitis as it is known does cause severe itching. This could be a part of lichen simplex or a neurodermatitis. Relapse and remissions are common. While hydrocortisone creme is effective can lead to skin atrophy when used long term. Riboflavine vitamin deficiency can cause scrotal dermatitis. Fungal infections need to be treated for, if found as a cause. Simple emmolients like vaseline give excellent results after a short course of hydrocortisone creme. Do discuss with your doctor the treatment modalities.
OR
this: Mens Conditions Forum - Ictching On Testicals
Very interesting advice given, from rubbing motor oil on it to having it circumcised. You choose.
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Record 2-time E-I Fantasy Football Champion 2010/11, 2013/14
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