What do you do to get better after sickness from mold exposure?

my wifw and 11 month old daughter have been terribly stricked with these cold like symptoms for the past two months and we can not figure it out. been to the dr. office even had to take my daughter to the emergency room because her cough is so bad and wet sounding. they gave her a prescription antihistamine and nasal drops and said she was just having allergies but i believe it is much more then that because she went to my moms house for the weekend and came back sounding much better but over the past week she sounds the same or worse again. my wife has asthma and has been coughing so bad she literally either broke a rib on each side or severely bruised them. she has pain in her back so bad she cant barely move around and i am beginning to see a lump on her back from the muscle being so strained. i was looking into things on the computer and i believe it comes down to there being mold in our apartment. the kitchen sink always stinks of something and there is a smell that i could never really make out through out the whole place. my two boys and i were sick with what i believe was regular flu or cold bug but it passed for the three of us and the girls seemed to never lose their sickness or atleast cough. i am beginning to become very worried about the whole situation. my wife is in very much pain in her back and sides at the upper rib area and i think the back is from trying to favor her ribs and its just wracking her back muscles. today im going on full scale attack and using bleach and water mix and vinegar and water mix and getting down and figuring it out because it has to be something inside of this place. should i get a dehumidifier or an air purifier? if you can help in anyway please do this is a very urgent matter