How can I help prevent contact dermatitis?

Avoid contactant. If you know what you are allergic to, avoid contact with that substance and anything containing that substance. Dermatologists have lists of products that contain the most common contactants. If you don't know what you are allergic to, your dermatologist can apply patch tests to your back to isolate the contactant.
Skin Irritants. A list of the top culprits that trigger skin reactions, or contact dermatitis. Some cause symptoms like redness, itchy skin, or inflammation.Some are triggered by an individual's allergy (contact allergic dermatitis) while other chemicals affect everyone (contact irritant dermatitis). http://www.webmd.com/skin-problems-and-treatments/features/dirty-dozen#1.

Related Questions

Can contact dermatitis be prevented?

Absolutely! All you have to do is avoid contact with whatever it is you are allergic to. Often, that is easier said than done, however. Read more...
Skin Irritants. A list of the top culprits that trigger skin reactions, or contact dermatitis. Some cause symptoms like redness, itchy skin, or inflammation.Some are triggered by an individual's allergy (contact allergic dermatitis) while other chemicals affect everyone (contact irritant dermatitis). http://www.webmd.com/skin-problems-and-treatments/features/dirty-dozen#1. Read more...

What's the most effective way to prevent contact dermatitis from football helmet?

Coat the area. If the dermatitis is from an irritation, try to get a better fitting one. If the dermatitis is itchy, the reaction may be from a contact allergy to the material which comes into contact with the face (rubber in particular). If you are allergic to rubber , try to find a substitute containing no rubber. If no such substitute is available, try to coat the area with polyurethane or clear nail polish. Read more...

Contact dermatitis - what can I do besides avoiding the allergen? Any barrier creams as prevention?

Yes. Ivy shield and ivy block are available. Stockhausen made a series of barrier creams that you may need to buy online. Prescription barrier cream is called tetrix. Read more...
Not really. The best thing for patients with contact allergy is to avoid the allergen. Or a physical barrier. The allergen can seep through any "barrier cream" and eventually still cause a problem. Read more...