My 14 year old decided he wanted to build his own desk. Unbeknownst to us, he used old wood full of ants. Now his room is full of ants. Ant traps and borax are not going to do the trick. We looked at Ortho Home Defense but the label says it could be an asthma trigger. I've a call into asthma doctor but thought I'd ask all of you what your experience might be and if you have any recommendations for something that worked well. Thanks!