But, as Luria Castell says at the end of Rockin' At the Red Dog, they never really disappeared.

NPR: Dylan, the Red Dog and the Real Summer of Love

Luria says if the problem is in between minor and life-threatening, it could well be worth the trip to the children's hospital.

CNN: How to find the best ER for your child

When the Red Dog's first summer was over, the Charlatans returned to San Francisco, as did Alton Kelley, Luria Castell, and Ellen Harmon.

NPR: Dylan, the Red Dog and the Real Summer of Love

When you get there, ask for Luria.

NPR: Dylan, the Red Dog and the Real Summer of Love

Loughlin recruited a chef, Jenna Worden, a mistress of ceremonies, Seattle folksinger Lynne Hughes, a dishwasher, former political radical Luria Castell, and a gigantic bouncer, a Washoe Indian named Mike Jones, and then found the band that would provide the entertainment, a well-dressed quintet from San Francisco who called themselves the Charlatans.

NPR: Dylan, the Red Dog and the Real Summer of Love

On the other end of the spectrum, if it's a relatively small problem (a minor burn, for example, or a cut that requires a few stitches) it may not be worth a long trip to a pediatric hospital, says Dr. Joseph Luria, medical director of the Emergency Department at Cincinnati Children's Hospital Medical Center.

CNN: How to find the best ER for your child