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.
Shingles is caused by the herpes zoster virus, the same virus that causes chicken pox. Aging, compromised immunity or other illness can cause the virus to awaken from dormancy. Shingles usually affects the torso, causing a painful rash with blisters. When shingles affects the eye, it is known as herpes zoster opthalmicus. Treatment includes oral antiviral medications and oral corticosteroids. It's important to seek treatment right away to prevent complications, including severe, recurring pain or relapses of the disease.