My daughter has been diagnosed with asthma?
Do what you can to reduce dust levels but do not go overboard because she will naturally build-up resistance to many things as she grows-up. Laminate flooring will help if it is vacuumed/dusted regularly, with bedding anti-allergy stuff is ok but ordinary polyester fibre materials are good too as long as they are fully aired and vacuumed along with the mattress every month or so. As a long term sufferer of asthma I would advise you to treat this like you would any minor incapacity – you need to let your child learn to live with the asthma and not feel like she is a weak and feeble because of it. Remember there are professional footballers who have this ailment so as long as she does not develop a chronic condition she will be fine. Just treat it as something that needs to be monitored and teach her to keep away from those things that aggravate her condition.