No, dermatitis is not contagious.
However, damaged skin from dermatitis predisposes people to infections.[1] The infection may be contagious in this case. Having a regular skincare routine is essential in preventing infection from dermatitis.
References
- ^Wang V, Boguniewicz J, Boguniewicz M, Ong PYThe infectious complications of atopic dermatitis.Ann Allergy Asthma Immunol.(2021-01)