Our house is really really clean but for some reason we’ve got these flying insects (really tiny) around our bathroom sink. Yesterday morning there were about 5 and I killed them all by splashing water on them. I came back later in the afternoon and there were about 20! My mom took a can of lysol and sprayed them down but there were more again at night. I think they might be fungus gnats because they seem to relish in the moisture. But how do I get rid of them? Someone suggested pouring bleach down the drain but I think this will only be another temporary solution for these pests. HELP!