Hi, welcome to HCM. Can understand your concerns.
Rash over body in 9 months old child can occur due to
measles,
chicken pox, viral infection, allergy to drug.
- In measles, there is rash along with
fever. Rash persists for approximately 1 week.
- In chicken pox, there are fluid filled rash which occurs simultaneously over all body. Fever is also present.
- In viral infection, rash can be present and it usually gets corrected within 3 to 4 days.
- In
drug allergy, rash occur simultaneously over whole body and needs immediate medical treatment.
Rash in your child appear to be viral infection related rash.
However, an examination by doctor should be done so that we may not miss any important finding.
I hope this will help you. Wishing your child good health. Take care.