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.
It is the same virus that causes chickenpox. Most people were infected with this virus (as chickenpox) when they were children. The body never completely gets rid of the virus, and the virus remains inactive in certain nerve cells in the body. Later in life, often triggered by stress or illness, the virus can become active again, causing shingles. Symptoms of shingles may include a rash (usually on only one side of the body) and burning or tingling pain. Usually, the rash forms blisters that may break and ooze. If this happens, you may be able to spread the shingles virus to people who have never had chickenpox. Shingles pain can be very severe.