Thanks for all your comments…
Here are some cures I have discovered. With a tiny bit of effort, all are available in Iran:
Go out to dinner at a crowded traditional restaurant that employs musicians.
Watch Singing in the Rain.
Tell strangers that you are American.
Go to the store and listen to the owner recite poetry.
Put some fresh mint into cold water and drink.
Sit outside in your swimsuit.
Eat sour cherries.