hlo sir /mam mera baby 21 din ka hua h or kal se iske face pe bahut Dane ho gye h red red what's reason & solution

A. Red Colour Rash over the body if present could be some allergy rashes which may be of sudden onset along with itching. or it could be viral exanthematous rash where the the onset of rashes is there along with fever or assosiated symptoms. and it could be some infection also which needs proper fdexamination. Application of calamine lotion or Anti itch lotion like Ritch lotion can be done for soothing along with antiallbergic medications initially.