 They're vests that feel like a hug that might help. They're also products that mimic a mother dog's pheromones. And veterinarians can even prescribe anxiety medication, including one approved specifically to treat noise aversion. Chris Foster, Fox News. Ann Wilson, the lead singer of the rock band Heart, has announced she has cancer. In a statement, she says she's had surgery to remove a cancerous growth and is recovering steadily, but that her doctors urged her to undergo preventive chemotherapy and take time off from performing in order to fully recover.