My baby (Siamese old girl) has always had a few emotional problems, but there getting worse, we just got a puppy and think this is too much for her 
She's started licking and biting a bald patch, near her bum, and its now a big, open, weeping wound.
She did this before, when DD2 was born and it lasted a few months.
Before I got some tea tree cream to put on it, from the pet shop, but untill I can get down there, could I use sudocream? Or another antiseptic?