Hi, I have two Bichon Bitches, they are only puppies one aged 18months and one aged 11 months. They have got on really well together and really miss each other when apart,however the problem is that they are becoming aggresive towards each other especially over things like who has the bone or who eats first or who gets the first stroke when I go into the kitchen in the morning. To start with I put it down to them finding their feet and sorting it out between themselfs. But my yougest has now suffered a couple of "hotspots" around her neck and I know they are really painful. Is all this due to the fact that my youngest is going to be coming into season soon and if it is what should I do about it. i.e should I seperate them or not? I know they love each other I just need to know what to do for the best.(ps I have had both puppies since they were seven weeks old and they have the same mother but not the same father)