First of all we are talking about Harmonia axyridis, also known as the multicoloured Asian lady beetle or harlequin lady beetle because of the species' tendency to vary in color.
You can do several things to control them:
1. The long-term solution to eliminating your beetle problem in the house is prevention. Inspect the outside walls, especially sunlit side, make repairs where necessary and apply an insecticide registered for outdoor use.
2. Mechanical removal by smashing, swatting or crushing them is not a good idea because their body fluid can leave a permanent stain on carpets, curtains, walls, etc. But lady beetles will stick to duct tape or similar sticky tape, which then can be discarded. Although this trapping may be practical to remove only small numbers of lady beetles.
3.Use a vacuum cleaner. An effective way to eliminate large numbers of lady beetles is to use a vacuum cleaner or shop-vac to "bag" the beetles. The beetles can be captured inside a knee-high nylon stocking that has been inserted into the extension hose or wand and secured in place with a rubber band (see http://knox.tennessee.edu/pubs/Knox/Asian%20Multicolored%20lady%20beetle.pdf ). As soon as the vacuum cleaner is turned off, be sure to remove the stocking so that the captured beetles cannot escape. As you remove it, the rubber band closes around the stocking, effectively "bagging" the lady beetles. You then can discard
them.
4. You can spray them with a pesticide. I would`nt recommend this, because you have a child and the chemical will be re-circulated throughout the home.
For further information look here http://www.ipm.msu.edu/beetleFAQ.htm
http://www.pestcontrolcanada.com/INSECTS/ladybugs.htm