These two sites are awful. They literally only display links that they get paid for. And they don't even do a good job with it. In some cases the affiliate links are a worse offer than others publicly available.
Shingles, a viral infection of the nerve roots caused by the chickenpox virus, can sometimes lead to a painful complication called post-herpetic neuralgia. Sometimes, a physical stress like cold or sunburn can bring on an attack. Even clothing touching the skin or a cool breeze can cause excruciating pain.
You cannot get shingles from another person. Shingles is caused by the varicella-zoster virus, the same virus that causes chickenpox. After you have chickenpox as a child, the virus lies dormant in your nervous system. Sometimes, for reasons not entirely understood, the virus is activated, causing shingles.