The Prevacid shouldn't affect the Omnicef, so it is OK if they are dosed around the same time.   The "acid reducers" they refer to (and they probably shouldn't have used such a broad term) are any antacids containing magnesium or aluminum (like Mylanta, for example).  Magnesium and aluminum can greatly reduce the absorption of the Omnicef, but Prevacid it just fine.

 

On a different note, what foods is Landon eating?  Recurring ear infections are very common in children who are allergic or intolerant to casein (a milk protein).  Is he on cow's milk or on a formula?  There are also many "hidden" sources of milk like most breads and baked goods, margarine, chocolate, etc.  If he is getting milk in any form, it might be worth doing a casein-free trial to see if the ear infections stop.

 

Hope this helps a bit!

 

The other type of allergy is less obvious, and the symptoms can appear many hours (even days) after exposure.  This type of allergy (or sometimes referred to as an intolerance) is usually caused by IgG (immunoglobulin G) in the body.  IgG allergies have many different symptoms, and their symptoms can vary from person to person.  Common symptoms include nasal congestion, wheezing or asthma type symptoms, congestion in the ears often leading to recurrent ear infections, and eczema.  In some children, IgG allergies can cause brain inflammation resulting in behavioural issues resembling ADHD and autism.  Most allergists do NOT test for IgG allergies, and aren't even aware of this type of allergy. 

 

It is not uncommon for a child to undergo allergy testing (which is 99.9% of the time IgE testing) and have the result show no allergy to milk, casein, soy or gluten.  However, when these foods are eliminated from their diet, they then have improvement of symptoms (like less ear infections, or clearing of eczema).  The reason for this would be that the allergy is an IgG allergy, not IgE, so it didn't show up on the test.  Often it is easiest to do a trial of removing the suspected food from the diet to see if the symptoms improve.

 

Another note, soy protein is very similar to the milk protein casein, and many children have IgG reactions to both.  Did your son's ear infections seem to start around the time he started soy or when he started eating solids foods containing milk on a regular basis?  If so, it might be worthwhile doing a milk/soy free trial to see if they improve.

 

Sorry for the long rant!!  But I hope some of this info is helpful.