Hello.
Thank you for asking at HCM.
I went through your son's history and would like to make following suggestions for him:
1. He may be reacting to any of the contents of the
baby food. Personally I would suggest you to withhold the baby food for a few weeks and then reintroduce under your pediatrician's guidance.
If apart from rash, your son has any other symptom like fever, cold
limbs,
vomiting,
diarrhea, not feeding well,
lethargy, etc, it may indicate an infection and please consult your pediatrician immediately.
2. For prevention of allergies & infections, only breast feeding up to 6 months of age and introduction of other foods only after 6 months is the best strategy. So unless necessary, I would not suggest you to introduce any food/formula before 6 months of age.
Hope above suggestions will be helpful to you.
Wish your son the best of the health.
Thank you & Regards.