 [ Symptoms ] my family has soap taste in mouth… and bloody noses please help [ Disease ] it depends on the severity of your allergic reaction for instance someone who may be allergic to bees should not just get stung again to see what happens someone who may be allergic to peanuts can have a fatal allergic reaction so it would not be wise to test with peanuts again there are excellent blood tests for food allergies one sample of blood can be tested for dozens and dozens of different food allergies from your list this is a safer way of making an accurate determination