Spider Bites: While many spider bites might just appear to be the work of a mosquito, if you look close you may notice distinctive, red fang marks accompanied by redness, tenderness and shooting pain. That may mean you've encountered a black widow, the most common harmful spider in California.
The most significant cost increase occurred in treatment for people with melanoma, the deadliest type of skin cancer. The study found that the cost of treatment jumped 106 percent, rising from $2,320 annually to $4,789 annually.
The average annual cost for skin cancer treatment increased from $3.6 billion during 2002-2006, to $8.1 billion during 2007-2011, an increase in costs of 126 percent.