my baby boy is now 6 month old..last 2 days notice that his right arm near about elbow inside some lump are there and as well as in his whole body small rashes also there...what can I do for this

A. It Maybe due to some allergy or infection it is better that you get a check with your doctor because without proper assessment it will be very difficult to comment on the situation the doctor can monitor it and access it personally and you’ll get a better diagnosis with that