Usually : Some sunblocks may cause a burning sensation when they come in contact with mucous membranes. Zinc oxide products typically do not. Otherwise it would be a good idea if you are sunbathing in the nude.
Answered 1/14/2013
5.4k views
Depends: Sunscreens are to be used for skin only. But, if you intend to use them on mucous membranes, do a small test area first to be sure there is no burning, stinging, allergies, or other side effects. Be aware that potential systemic absorption may be toxic.
Answered 1/15/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
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