The use of acne patches is not recommended for pregnant women because they contain chemical ingredients that may affect fetal development. Acne patches are a hydrocolloid dressing with adhesive, absorbent and elastomeric components that are applied to the skin to isolate the acne from the outside world and keep it free from infection. Acne patches generally contain harsh chemical ingredients such as salicylic acid and are not suitable for pregnant women. The topical mode of action of acne patches tends to make the skin locally dry and itchy, aggravating the discomfort during pregnancy. Most of the acne patches available on the market are from non-authoritative medical institutions and cannot provide sufficient safety for pregnant women. Due to the increased secretion of sex hormones and changes in lifestyle habits, pregnant women may have acne during pregnancy. If it is only inflammatory acne, such as stinging, spiky, reddish acne, you can apply local moisturizing water to relieve discomfort. If the symptoms worsen or do not ease, it is recommended to seek professional medical help for treatment. In addition, pregnant women with acne need to avoid stimulating and spicy foods in their diet, and focus on light and nutritious foods. The discomfort caused by acne can disappear naturally after delivery as the pregnancy progresses.