Hives, or urticarias, are red and itchy bumps on the skin, which usually develop as an allergic reaction to a substance outside the body. When an allergic reaction occurs, the body releases chemicals that cause the formation of hives. Children are more prone to hives since their immune systems are not fully developed and they are more likely to suffer an allergic reaction. Hives usually go away on their own; however, sometimes the child may need medication or a shot. MayoClinic.com says that hives are caused by inflammation in the skin, in response to certain allergens.
Foods
According to MayoClinic.com, certain foods that a child may be allergic to may cause hives. Common foods that can lead to hives are fish, shellfish, eggs, nuts, milk, chocolate and berries. Certain food additives such as salicylates and sulfites are also potential allergens that can lead to the development of hives in children.
Medications
Hives can develop in children as a reaction to certain medications, MayoClinic.com states. Although this can occur in reaction to any medicines, certain medications are more likely to cause an allergic reaction in children. These include penicillin, aspirin, ibuprofen and antibiotics.
Other Allergens
When children come in contact with pollen and animal hair and dander, they can develop hives, MayoClinic.com reports. Insect stings, such as from bees, or animal bites can also cause red and pink bumps on the skin of a child.
Medical Conditions and Other Factors
Medical conditions that may cause hives include gland diseases, blood diseases, or even cancer, according to , according to MayoClinic.com. Infections caused by viruses are also a cause of this condition. A child may develop hives in response to a cold or a thyroid disorder. If the child is given a blood transfusion for another medical reason, there is a likelihood of an allergic reaction and subsequent occurrence of hives. Exposure to cold such as diving into a cold pool is also a factor. In some children, exercise and exposure to the sun can also cause hives. Emotional pressures such as nervousness or stress may lead to a release of histamine in the body and result in hives. Children with a parent or parents prone to developing hives are also more at risk of developing this condition.
