I have 1 year and 3 month old son. he is having a red rashes (like eczema) on his body . my ped suggested denoside cream (0.5%) . can i use on face?

No.: I would use only topical hydrocortisone on the baby's face.

Not at 0.5%: This is a bit strong for the face (can cause skin thinning and blanching). 0.1% hydrocortisone or 0.05% Desonide is milder better for the face. Be sure to moisturize aggressively (moisturizers and/or wet wraps should have been discussed) and to be aggressive in preventing skin infection. Consider a virtual consult if you have questions. Eczema is very treatable with the right tools!

Yes: Low dose topical steroid creams are safely used on face to treat eczema.