What can cause perioral dermatitis?

Not clear. The exact cause of perioral dermatitis is not known. However, it may appear after strong topical steroid creams are applied to the face to treat other conditions. (strong topical steroids should never be applied to the face.) the Fluoride in toothpaste is sometimes blamed, but i think it is rarely (if ever) the cause.

Related Questions

Can perioral dermatitis have psycological causes? Does the psycological effect worsen the condition?

Yes. Peri-oral dermatitis is felt to be due to related to hormonal changes so stress can contribute to the condition. Read more...
Could be. Psychological factors could be a factor, however, you should take multivitamin supplement just in case it is due to vitamin deficiency.
Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Read more...

Could untreated Perioral Dermatitis for 8 months cause thinning and less elastic skin? If yes will it ever bounce back to normal?

YES. AND YES at age 25 the skin can pretty much "bounce back" to any TEMPORARY loss of elasticity such as a simple dermatitis without scarring! Hope this is helpful Dr z. Read more...