Medical marijuana advocates hope their second shot at the ballot delivers cannabis to sick Floridians.

One supporter, Amy Guenst of Riverview, has one person in mind when it comes to her belief in the need for Amendment 2.

"As a mother, I should have this option for my child," Guenst said. "A vote for medical marijuana is really about compassion."

Guenst is due any day now with her fourth child. But it was right around the due date of her third child that she learned her youngest son, Luke, had leukemia.

"He was in horrible pain from the chemotherapy," Guenst said.

Guenst said the pain medicine and chemotherapy caused nausea, vomiting and angry rages for Luke, who was just 2 1/2 years old at the time.

Luke is now a happy 4-year-old, and his leukemia is considered to be in remission. But he still has to do chemotherapy every day, and every three months Luke goes to the hospital for a spinal tap.

His mother thinks full strength medical marijuana would allow her to keep him off powerful painkillers such as morphine and hydrocodone.

"The politicians have not served us on this," Guenst said. "So now we are a group of grassroots people just begging for compassion."

Floridians will again decide on a medical marijuana amendment to the state's constitution in November, an amendment that narrowly failed to pass in 2014. This time, Amendment 2 has more clearly defined medical conditions for cannabis treatment.

The changes to the ballot question this time include language requiring parental consent before a doctor can recommend medical cannabis.

Amendment 2, of course, has its opponents, just as it did in 2014. The Florida Medical Association has come out against it, and the "No on 2" group claims the amendment will lead to a pot dispensary on every corner.

"All those ads are so bogus," Guenst said. "This is a healing plant. I hope people will pray before they vote, and God will lead them toward compassion."