The best way to treat irritated ears from an allergic reaction to earrings is to remove the earrings immediately. If no signs of infection are spotted, keep the ears clean and avoid using metals that cause an allergic reaction in the future.
Some people are allergic to having certain metal compounds coming into contact with their skin. In order to avoid this hypoallergenic earrings are plated with a different metal to avoid a reaction.
Yes, your body responds to the metal.
Hypoallergenic soap is soap that is made wihout certain ingredients, which would otherwise create an allergic reaction. Hypoallergenic means "less likely to cause an allergic reaction when used." (candleandsoup.about.com)
You could have an allergic reaction to a certain ingredient in it causing inflammation, etc.
It is possible to have an allergic reaction to anything if your body recognizes it as something that will harm it.
Well you can get ear infections from having your ear pierced but it can't exactly affect your health and some people are allergic to certain types of earrings which can cause infections, rashes or just itching but again it doesn't really harm your health.
you possibly could be having an allergic reaction to a certain food or even a new laundry detergent.
Only certain allergies (eg pollen) cause your eyes to swell.
It is estimated that around 1-2% of the population has a true allergic reaction to preservatives. However, many more individuals may experience intolerance or sensitivities to certain preservatives.
Eosinophils are a type of white blood cell involved in immunity. They normally fight certain infections and work with other types of cells in allergic reactions. They have several other functions, but for the purposes of your question, it leads the physician to determine if there is infection or an allergic reaction and severity of the reaction.
No
An allergic reaction to certain foods may contribute to gallbladder attacks. These foods should be identified and removed from the diet