To prevent chafing in the ocean, there are a few steps you can take. First, wear a rash guard or a wetsuit when planning to spend time in the ocean. This will help protect your sensitive skin from abrasions and other forms of discomfort.
If possible, try to stay away from rough coral, rocks, and other sharp objects when swimming or surfing. You should also opt for board shorts with extra liner to reduce the friction caused by the fabric rubbing against your skin.
Additionally, don’t forget to apply sunscreen to protect your skin from sunburn and other forms of discoloration. If your nipples are particularly sensitive and prone to chafing, you may want to consider using a lubricant such as petroleum jelly to keep the skin soft and reduce any friction.
Lastly, after swimming make sure to clean your body with lukewarm water and a moisturizing soap to help prevent your nipples from drying out.