For the last fifteen years I am alergic to the seawater. Every summer either in Australia, Europe, Fiji when I go for swim  the next day the rashes come then they join in into big blotches  only on my legs below the knees but recently on my elbows also.Gets very etchy and hot. It last for week or two. Went to Fiji had a swim  took double dose of Zayrotec day before  thinking I have solved my problem no more rashes but they still come it helped very little  but was gone in 3 days. Had hivefever when younger but it is gone now. As I am perimenipousal now is  it mineral imbalance,hormone imbalance or just plain sensitivity to the seawater.  I have seen doctors had tests done and I am ok . They do not know why is happening.Does anyone has solution?   Gordana