This sounds like separation anxiety. I would just be patient for at least another month try to have the baby around people often so that he or she gets the hang of it. and do some research or your own about stranger anxiety and separation anxiety which is a typical behavior for a 9 month old.View Thread
If the baby is already 9 months I would say it is great to start introducing time out. That way it will be easier when the baby is older. It would make it easier because the baby would realize that they don't have an option, that it is something they have to do. I would thou say to make sure that proper time out is in place for example even it the baby is too young to fully understand language, She would still need to tell the baby the reason for the time out. after time out is complete which I would recommend half a minute let the child know why he or she was in time out. I would also remind her that time out doesn't work unless there is time in which would be rewards for the good behavior. Hope this helps!View Thread
The opinions expressed in WebMD Communities are solely those of the User, who may or may not have medical or scientific training. These opinions do not represent the opinions of WebMD. Communities are not reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance, objectivity, or any other reason except for compliance with our Terms and Conditions. Some of these opinions may contain information about treatments or uses of drug products that have not been approved by the U.S. Food and Drug Administration. WebMD does not endorse any specific product, service or treatment.
Do not consider Communities as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of something you have read on WebMD. You should always speak with your doctor before you start, stop, or change any prescribed part of your care plan or treatment. WebMD understands that reading individual, real-life experiences can be a helpful resource, but it is never a substitute for professional medical advice, diagnosis, or treatment from a qualified health care provider. If you think you may have a medical emergency, call your doctor or dial 911 immediately.