What conditions cause constant diarrhea on a toddler?

Elise has loose stools on and off a few weeks fine other weeks diarrhea.. Its been going on for a few months. Every time I take her to the doctor all thy say is she has a virus..

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    08/14/16
    Ever Lopez
    you most keep track of what the child is eating... maybe something new or the milk is not settling right anymore! hope she feels better soon! xoxo
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      08/15/16
      Dairy causes my daughter to have diarrhea so we do lactose free or coconut milk.
      https://www.niddk.nih.gov/health-information/heal…
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      08/15/16
      What is chronic diarrhea?
      Diarrhea is loose, watery stools. Chronic, or
      long lasting, diarrhea typically lasts for more
      than 4 weeks. Children with chronic diarrhea
      may have loose, watery stools continually,
      or diarrhea may come and go. Chronic
      diarrhea may go away without treatment, or
      it may be a symptom of a chronic disease or
      disorder. Treating the disease or disorder
      can relieve chronic diarrhea.
      Chronic diarrhea can affect children of any
      age:
      • infants—ages 0 to 12 months
      • toddlers—ages 1 to 3 years
      • preschool-age children—ages 3 to
      5 years
      • grade school-age children—ages 5 to
      12 years
      • adolescents—ages 12 to 18 years
      Diarrhea that lasts only a short time is
      called acute diarrhea. Acute diarrhea, a
      common problem, usually lasts a few days
      and goes away on its own. Read more about
      acute diarrhea in these publications at
      www.digestive.niddk.nih.gov:
      • Diarrhea
      • What I need to know about Diarrhea
      What causes chronic
      diarrhea in children?
      Many diseases and disorders can cause
      chronic diarrhea in children. Common
      causes include
      • infections
      • functional gastrointestinal (GI)
      disorders
      • food allergies and intolerances
      • inflammatory bowel disease (IBD)
      Infections, food allergies and intolerances,
      and IBD may cause chronic diarrhea along
      with malabsorption, meaning the small
      intestine does not absorb nutrients from
      food. If children do not absorb enough
      nutrients from the food they eat, they may
      become malnourished. Functional GI
      disorders do not cause malabsorption.
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        08/16/16
        i just read on Facebook other kids are having diarrhea after getting the next round of vaccines.
        Praying for Elise.
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