Dust covers on mattresses and pillows will reduce symptoms. If you have pets and you child is allergic to them, either find a new home for the pet, or use allergen reducing rinses for them after bathing the pet. Keep all pets out of the child's bedroom. Another good way to reduce allergens is to purchase an air cleaner for your child's bedroom and for the common areas of the home. For pollen and mold allergies, keep the child's exposure to outdoors on high pollen mold count days to a minimum and use the air conditioner to help filter the air.
Food allergies are very common in infants and young children.
Infants can be allergic to cows' milk and consuming it my lead to diarrhea, colic, vomiting and fussiness. It's always recommended for a baby to be fed breast milk if possible because this prevents milk and other food allergies. If your infant is allergic to cows' milk, and you are unable to supply breast milk, then ask your doctor about soy formula. Check the ingredients to make sure there are no hidden milk products in the soy formula. If your child shows a reaction to soy, then consult your child's doctor immediately.