Well, the answer is yes and is no. Yes because you should use topical agents only and only if you need them. Say you have dermatitis or you have an allergic rash, then it is very safe to use topical agents. Why then are they supervised by a doctor? Unfortunately in pregnancy many women chose to use topical agents before they were pregnant or because their friends are using them. This is not a good idea. Always use topical agents if necessary, only as much is necessary and only for the time duration it is needed to make sure that your pregnancies are healthy. Please remember that a little bit gets absorbed through the skin and that is why you need to play it safe.
source
