If all the indicators are normal in late pregnancy, the injection treatment usually has no effect on the baby, but it depends on whether the drugs used to treat the rash have any effect. Although pregnancy is a special period of time, pregnant women’s body and physiological functions and normal different, but if necessary, then it is possible to carry out injection treatment. However, it should be noted that the medication should be used with caution, because pregnant women and fetuses in the process of growth and development may be affected by drugs and other factors, so it is the medication that affects the baby, not the way the medication is used. If the rash appears in late pregnancy, then it is necessary to be treated under the doctor’s instructions, choose the appropriate treatment and medication to avoid aggravation of the symptoms. It is important to remind pregnant women not to use their own medication, but to have a physician choose the right medication and way to use it according to their condition.