If you like traveling across the world, then you may have to deal with jet lag problems. The largest markets and economies are located on opposites sides of the oceans. This makes traveling to such places very inconvenient. If the company has relationships and intentions beyond your backyard, then you must travel to meet these folks face-to-face. Moreover, these ways can help you fix the problem.
Hydrated
You should be hydrated during your flight. This is because, inside a flight cabin, you will find the driest place ever. Therefore keep some water with every opportunity you get. If you fail to have some water, you are likely to suffer from muscle aches and headaches. This will 
make your jet lag last more than it should. In fact, it will be more miserable after you arrive.
Stay Awake
If you land during the day, avoid taking a nap. This is because it will alter your wake-sleep pattern, which you will regret later. Rather take a shower, do some sightseeing, and go for a walk. You can use buddy system during your weak moments. Try to stay awake until 9 pm. Although it will be tough, you will find it worth. You will get a good shot at sleeping through the waking and night somewhat fresh the next day.
Alcoholic drink
Travel is very hectic and unfamiliar culture and surroundings will keep your head spinning. You will be held up for hours till you get some adequate time for yourself. Therefore, get yourself an opportunity to take some cocktail or beer. It can be dehydrating, but 
it is worth the risk. Avoid overdrinking and ensure you drink some water before going to bed.
Take an Ambien
This should be done before going to bed. It will put you down for about five hours. This is to ensure your body works with you and not against you. These are prescription medicines provided by doctors. Get your dose and not that of your partner or someone else.
Caffeine
You should drink caffeine during the day. Do not overdo your caffeine tolerance. Therefore, do not go nuts with this. If your head is fuzzy, get some coffee or cola and you are guaranteed some boost. Even it is 5 pm, and there is no enough caffeine with you, go for it. It will kill the urge to sleep when you are in the conference room filled with honourable guests.