You are very welcome.The average weight for a little boy of 18 months is 11 kg. Your son's weight is well below the average and lies on the so-called 2nd percentile line. This means that his weight is in the lowest 2% for all boys of his age.I am not at all happy with this. He is obviously still allergic to cow's milk as he cannot tolerate any regular cows milk based growth formula such as those you list here.In addition he has asthma. I really think that it is time for him to be seen and treated by a paediatric allergist. There are experts in all the main centres in South Africa. If you cannot find one of these experts in your area I will try to help you to find one.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.