I suffer from hot dry face several hours after training.

Is this from dehydration or is it lack of electrolytes?

I dont have the problem during training but do several hours after.
perhaps it matches the peek heat of the day? from 3pm on wards.
Training typically at mid day.

Also my eyes seem tired.

I think i sweet a lots while training. but consume about 1L at the gym of water and fruits after.
My diet has healthy amount of fruits and veges.