If it were me, considering your daughter's allergies, I would just wash it at home. Better to take a chance with your washer than with her health, IMHO. The first rag quilt that I made I took to the Laundromat due to some of the things I heard. Once I got there it was not clean inside at all and had an odor of natural gas and I just couldn't do it. I took it home and washed it in my front loader washer, dried in the dryer and had no problems. That's how I've done since. That quilt was made with flannel, homespun and regular cotton fabric with a flannel batting. Good luck with your decision
