Pimples, also known as acne, occur around the time of puberty and usually do not have significant itching. If obvious itching occurs, it may be due to irritation from topical medications or eczema. If it is due to the stimulation of topical medications, it is recommended to stop using topical medications, and continue to use them after the itching and redness subside, making sure to apply a small amount of topical application, and generally choosing to apply it spot on, as far as it will go. If it is a combination of eczema, it is recommended that you can use local topical eczema treatment drugs, such as butylhydroxy acid cream, once in the morning and evening, a small amount of topical application. Severe cases can be treated with oral antihistamines, such as desloratadine and fexofenadine. When the itching and redness improve, you can continue to use medication to treat acne. However, if itching as well as eczematization occurs, it is best not to choose to use topical medications for acne, so as not to lead to the aggravation of eczema.