What could help my 5-year-old with his coughing asthma and otitis media with effusion?

Asthma?: Has he been diagnosed with asthma? If so, then he needs his rescue inhalers. His ear infection may need antibiotics so you need to have him seen by his doctor.

Make sure to check: for food allergies too, & watch his diet. Speak to his pediatrician first & do an elimination diet to make sure he's not compounding the problem.Work with a clinical nutritionist for any substitutions needed. Would reduce or eliminate GMO wheat, soy, corn, potato, dairy, sugars from diet & see if there's a change or reduction of asthma. Many ways to get needed calcium and Vitamin D3 into his diet.