Hamilton and her family traveled from Virginia to see Dr. Mark Linskey at the UC Irvine Medical Center in hopes of a treatment that would last until a cure for her condition can be found. She underwent brain surgery on Tuesday.
Hamilton's mom, Megan, told Eyewitness News that her daughter came through surgery well and is recovering in the ICU.
"We cannot thank Dr. Linskey enough for his work on behalf of our girl and others like her struggling with this terrible condition," the family said in a statement.
Hamilton is already up and about, even taking a walk around the hospital with her doctor.
Hamilton first experienced the excruciating pain at age 11. Her family says it took months to figure out what was wrong. The 13-year-old said the pain strikes with no warning and anything, such as cold air, can trigger it.
The disorder, often associated with blood vessels or nerve clusters that compress the trigeminal nerve, triggers unbearable facial pain.
Officials say the disease affects about 1 in 15,000 people, striking mainly women over the age of 50. TN affects less than one percent of children.
Hamilton's family said those who would like to show their support can donate to the Facial Pain Research Foundation, where researchers are trying to find a cure.