How to remove old coffee stain from my toddlers Pooh Bear?

About a month ago, we took our daughter on an overseas trip and I spilled coffee on her Pooh Bear as we took off. All I had was tissue and wet wipes and I tried to soak up the coffee as best as I could before handing it back to my crying toddler. We are back now and so is the stained Pooh Bear. She has 3 more pooh bears but she only wants her stained pooh bear. So how do i give Pooh Bear his long overdue bath?