it is just to confirm that what you were not hit by the sun, you can use normal water ... no need for salty one ... the idea with salt water it will not get warm or hot directly because of your body temperature ... so if it will get hot then it is for a valid reason ...
Anyway, get well soon ... nothing more ...

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment. (Gautama Buddha)