With mosquito-borne diseases such as dengue and malaria continuing to pose public health concerns across India, mosquito repellent creams have become a daily essential for many people. Used widely during outdoor activities and evening hours, these products are designed to prevent mosquito bites. However, questions persist about whether their chemical ingredients can harm the skin or trigger adverse reactions.

Dermatologists say that most modern mosquito repellent creams are safe for human use when applied correctly. According to Dr. Priyanka Kuri, Consultant Dermatology at Aster Whitefield Hospital, Bengaluru, commonly used ingredients such as DEET, picaridin, and IR3535 have been extensively studied and are approved for topical application. She notes that global health agencies, including the World Health Organization (WHO), recommend repellents as an important preventive measure against mosquito-borne infections.

Experts emphasise that while these products are generally safe, they are not entirely free from side effects. Some individuals may experience mild skin reactions such as redness, itching, or irritation, particularly those with sensitive skin or pre-existing conditions like eczema. Dr. Sai Lahari Rachumallu, Associate Consultant Dermatology at Manipal Hospital, Bhubaneshwar, explains that such reactions are usually temporary and resolve once the product is discontinued or used more carefully.

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Doctors also highlight that misuse of repellents is a more common cause of skin problems than the ingredients themselves. Overapplication, use on broken or inflamed skin, or combining repellents with other skincare products can increase the risk of irritation. Experts further caution that applying repellent too close to the eyes, mouth, or on damaged skin should be avoided to reduce the likelihood of adverse effects.

While some consumers prefer herbal or “natural” mosquito repellents, dermatologists warn that these alternatives are not always safer or more effective. Many provide shorter protection times and may still trigger allergic reactions in some individuals. As a result, experts suggest that scientifically tested formulations remain the most reliable option for protection against mosquito bites.

Medical professionals stress that the benefits of using mosquito repellents far outweigh the relatively minor risk of skin irritation. With India continuing to report significant cases of dengue and malaria, preventive measures remain essential. Doctors advise users to apply only the required amount, avoid sensitive areas, and wash off the product after returning indoors. In cases of persistent irritation or rash, discontinuing use and consulting a doctor is recommended.

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