Not doing great...

Well Jaron finished his antibiotics for the bronchitis he had and used all the congestion/cough medicine too. So all the symptoms are BACK!!! He puked ALL OVER ME tonight. I AM AT MY WITS END....I don't know what to do anymore. It seems none of the doctors are getting it right. I feel like there is something wrong with his digestive system or something. I am so tired of watching my baby puke up all his nutrition. SOMEBODY HELP!!!! ANY SUGGESTIONS???