Updated at 6:10 p.m. Jan. 29: Revised to show that Emily Rose Oehler is back home.

A 5-year-old girl is home from the hospital and recovering a week after she was bitten by a western diamondback rattlesnake at a Texas state park.

Emily Rose Oehler was playing at Longhorn Cavern State Park on Jan. 21 when she was bitten.

"I just saw her flying around the corner and she was screaming, 'Snake!'" her mother, Alicia Oehler, told KXAN-TV. "She ran so fast that her jacket flew off."

She was quickly taken by paramedics to a hospital in Burnet then flown to Dell Children's Medical Center of Central Texas in Austin.

Emily Rose received 16 doses of antivenom in 24 hours then needed more after a setback, her family said. The treatment is costly, with one vial costing hundreds to thousands of dollars, depending on the species.

The family said they applied for financial help through the hospital to help with the antivenom costs.

Now Emily Rose is home and using a wheelchair and walker to get around. She can't put much weight on her leg and her foot is still swollen. Her parents are also keeping an eye out for "serum sickness," which can occur a week or two after antivenom is used, KXAN reported.

"We were terrified for a long time, " her father, Wes Oehler, told the station. "But to have her home already, it was hard to keep it together on the way home."

The family had been to the park many times before, and Oehler was hoping the trip would give her children a chance to get out of the house and run around.

It's unusual for snakes to be out in the cooler months, Tim Elmore with Texas Parks and Wildlife law enforcement told KXAN. It's a time when snakes are typically lethargic and in a period similar to hibernation.

Western diamondbacks are the most common and widespread venomous snake found in Texas, according to Texas Parks and Wildlife. They're found across the state except in the easternmost part.

What to do (and not do) if bitten by a snake:

The dangers from a snakebite run the spectrum from swelling to death. Several factors affect the severity of a bite including the snake, the number of strikes and how deeply the fangs penetrate. The risks also depend on where a bite occurs — in a vein or a muscle, for example — and how long it takes to start treatment.

With warmer weather, more snakes are coming out of brumation, similar to hibernation. If you come across one, leave it alone. But if you are bitten, here's what to do — and not to do.

Do:

For questions about what to do, where to go or the effects of snake venom, you can also call the North Texas Poison Center at 800-222-1222.

If you have no means to get to an emergency facility, or if you are extremely dizzy or have trouble breathing, call 911.

If bitten on an extremity, try to avoid moving it so the circulation of the venom might be slowed.

Take a picture of the snake that bit you or try to remember its markings. At Parkland Memorial Hospital in Dallas, there are pictures of the most common snakes. Some people have brought the whole snake to the hospital after killing it.

Don't:

Don't try to suck out the venom like you've seen in the movies. It doesn't work. Likewise, never make a cut where the snake bite is and try to draw out the venom. And don't use electricity, tourniquets, heat or suction devices.

Source: Dr. Nancy Onisko, Parkland Memorial Hospital