If you live in a region with heavy flea infestation, we suggest that you use FleaHex ® Wash and Household Spray once or twice a month as a preventive. (peterdobias.com)
You can use the lemon tonic daily for cases of heavy flea infestation. (happytailsspa-blog.com)
Adult fleas feed on the blood of their hosts, so heavy flea infestations can even lead to anaemia from blood loss, which can be fatal. (lowchensaustralia.com)