Hello, As she completed 6 months, it is better to give the well boiled and crushed rice with boiled vegetables and cereals. It is not necessary to give lactogen and other commercial products. You can give the boiled green vegetables and mashed apple. It is normal to have vomiting when you wean your child from breast feed. Nothing to worry about this. She may get cold, cough and sight loose stools during this weaning period. Hope this helps. Please write back for further queries. Wishing you good health.