Neck injuries can range from mild discomfort lasting several days to severe pain requiring surgery. Serious neck injuries can often lead to long-term problems lasting months or years and in some cases causing permanent damage. This is why, if you have been involved in a rear-end collision, it is important to seek medical attention right away. Often, x-rays or MRIs are needed to rule out more serious problems, such as herniated discs. If the pain is due to muscle strain or other soft tissue damage, treatments like massage, physical therapy, and heat/cold therapy can be helpful. In some cases, it may also be necessary to wear a neck brace or take medication for pain relief. If you've been in a collision, it's important to see a medical professional as soon as possible to rule out any serious problems and to get started on treatment for your neck pain and injuries.