Inflammation in babies is a common term, in medical terms it should be a symptom of infection. The pathogens that babies are prone to infections are usually bacteria, viruses or mycoplasma. Bacterial infections are not self-limiting, they do not get better on their own and need to be treated with antibacterial drugs; while viral infections are self-limiting, most mild viral infections can get better on their own and do not require the application of antiviral drugs. However, there are some viruses like avian influenza virus, SARS virus or hand, foot and mouth disease virus, the scope of this infection is more extensive, the organ damage is more serious, this will not get better by itself, need symptomatic treatment; and mycoplasma infection, need to see if it has caused serious consequences, like if only found positive mycoplasma antibody, no sneezing, runny nose, nasal congestion, cough some symptoms, also do not need treatment. There is no need for treatment. It can exist in the body for a long time, but will not cause harm to the human body.