<s>[INST] My little grand daughter who is 10 weeks old has had about 6 nappies with lots of yellow jelly in the poo, she has had slight traces of blood in the poo as well. She has also had projectile vomit and is not taking her bottles. Took her to the G.P who said it was a viral infection, we are all worried. [/INST] Hi...I went through the history points you have provided - THIS IS NOT A VIRAL INFECTION.I feel that your baby is having cow's milk protein allergy (CMPA). Unusually babies grow out of this sort of allergy by 1 year of age. My suggestions for you - 1. Mother should go off cow's milk protein completely. This means that you should avoid consumption of anything and everything related to cow's milk - like - milk/ curds/ ghee/ butter milk/ chocolates/ biscuits/ ice creams etc. Even while buying commercial food products, you need to see the ingredients and if they contain milk - do not consume them.2. Feed you baby only exclusive breast feeds till 6 months of age and then start rice based feeds.  3. If this is followed scrupulously - the baby will stop having diarrhoea in another 3-4 days and then start gaining weight too.4. If you feel your feeds alone are inadequate for the baby, then Zerolac is the only option. I request you to keep me posted about the recovery of the baby and follow of the case.I wish your kid a speedy recovery. If you need any future medical consultation and suggestions, I will be glad to help. You can approach me at the following link. Please find the link below - www.healthcaremagic.com/doctors/dr-sumanth-amperayani/67696Regards – Dr. Sumanth </s>