sentences:  Therefore, it is advisable to remove all birds, bedding and pillows containing feathers from the patient's home, as well as any down-filled outerwear and sleeping bags.At a minimum, it is also advisable to wash all soft furnishings, walls, ceilings and furniture, and to avoid future exposure to birds, bird droppings, or any items containing feathers, such as pillows in many hotels.In extreme cases patients may be advised to evacuate their homes permanently and to get rid of all possessions that have been exposed to avian proteins if they cannot be cleaned thoroughly inside and out.