It is possible for insect bites to appear like bruises, especially if you are sensitive to this type of reaction. As long as the bruises do not increase in size and are temporary, there is no need to worry. It is recommended to use a fragrance-free moisturizing cream multiple times a day and avoid scratching the affected area. Additionally, avoid using scented soaps and gently pat the skin after bathing before applying the moisturizing cream. These measures are usually sufficient to promote healing.