ive been suffering from facial swelling for like 12 years now and my doctor and hospital dermatologist cant find out whats causing it but ive recently found out that it could be edema and i could be allergic to salt so how do i go about cutting it out from my diet and would i need a supplement or somethng will it affect my health if i cut it out please help someone! also ive noticed that if my face is swollen i up my water intake and the next day my face isnt as swollen and antihistamines dont help nomore so i dont know where to go from here as doctor and dermatologist are of no use have to do something myself anybody please help im desperate this allergy is starting to take over my life