The best treatment for minor<unk>  is drinking water and stopping fluid loss. 
Water is preferable to sport drinks and other commercially-sold<unk>  fluids, as the balance of electrolytes they provide may not match the replacement requirements of the individual. To stop fluid loss from vomiting and diarrhea, avoid solid foods and drink only clear liquids.
In more severe cases, correction of a dehydrated state is accomplished by the replenishment of necessary water and electrolytes <unk> , through oral<unk>  therapy or intravenous therapy). Even in the case of serious lack of fresh water (e.g., at sea or in a desert), drinking seawater or urine does not help, nor does the consumption of alcohol.  It is often thought that the sudden influx of salt into the body from seawater will cause the cells to dehydrate and  the kidneys to overload and shut down but it has been calculated that an average adult can drink up to 0.2 liters of seawater per day before the kidneys start to fail.
When dehydrated, unnecessary sweating should be avoided, as it wastes water.  If there is only dry food, it is better not to eat, as water is necessary for digestion. For severe cases of<unk>  where fainting, unconsciousness, or other severely inhibiting symptom is present (the patient is incapable of standing or thinking clearly), emergency attention is required. Fluids containing a proper balance of replacement electrolytes are given orally or intravenously with continuing assessment of electrolyte status; complete resolution is the norm in all but the most extreme cases.<unk>  is considered an absolute contraindication to the use of the following medications:
Iopromide
Mannitol
Methenamine
Dehydration medical therapy
Acute kidney injury medical therapy
Hypernatremia medical therapy
Acute liver failure medical therapy
Diabetes insipidus medical therapy
Hyponatremia medical therapy
Hematuria interventions
Nausea and vomiting medical therapy