I am so sad that you washed a quilt top. Can you post a photo so we can see how much damage has been done?? I agree with what Dee had to say. You have to be patient and work on one small area. Keep you heat NOT on cotton otherwise you could scorch the quilt top. Just take your time and if you feel frustrated, walk away, doing something else and when you are up to trying again, then go back. I wish you the best of luck. ALWAYS wash a quilt after the three layers of the quilt have been secured with thread by quilting or tying with binding attached.