There are many reasons why children get red bumps and itchy, such as hives, eczema, mosquito bites and other reasons. 1. urticaria: due to contact or ingestion, inhalation of certain allergenic substances, the skin mucosa temporary vascular permeability increased and limited edema, will cause redness, clammy, itchy skin, can lead to children with red bumps and itchy. 2. Eczema: a variety of factors stimulate the skin inflammatory reaction, may also lead to children with red bumps and itchy. 3. Mosquito bites: children’s skin by mosquito bites can also cause redness, pimples, itching and other symptoms, also manifested in children with red bumps and itchy. Children with red bumps and itchy, there may be other reasons, you need to go to the hospital in time for further examination, to clarify the cause of active treatment.