If you have had shingles, you may get chickenpox again. Chickenpox can be triggered by a very low immune system, such as a combination of coronary heart disease, angina pectoris, diabetes, severe stomach disease, kidney disease, AIDS, or malignant tumors. In adults, the disease may be more serious if the chickenpox occurs again. For children, there is a risk of getting chickenpox if they have had shingles. Chickenpox can be triggered by overexertion, fatigue, stress, anxiety and other conditions where the body’s immunity is reduced. In terms of treatment, you need to take oral antiviral drugs, such as vaxilovir hydrochloride granules and famciclovir tablets, as well as the oral nerve-nourishing drug mecobalamin capsules, and also oral immunity-boosting drugs, such as pidomod oral solution.