OK me and My 4 year old daughter have been itching like crazy for more than 6 months yes I did a lice treatment and never seen any bugs or nits so then I went to the doctor and she said it was due to the heat(we were living in Acapulco Mexico a very tropical humid enviroment) The itching on both of us never stopped I figured it was due to the weather. Now we have moved back to California and we are still extremely itchy my 6 year old is also itchy. My mom checked my head and only found what appears to be a nit and just 1 or 2 so I shook my head over the sink and nothing but 1 extremely small I think bug the size of the period at the end of this sentence. Or smaller even when my children woke up I shook their heads too. My 4 year old had 2 little extremely small dots and my son had about 4. Now if this was lice we would be extremely infested over this long 8 month period of time so could it be some other type of infestation? We have no bites or redness at all just extreme itching, And I have no medical insurance and very little money.