Hi been out with dogs through few woods gets back in and i noticed inside toe is swelled and above feels like bubbles and i can here it when i rub down had this before or other dog its full side was like this of a hard tumble on rabbit shud i be worried or just been hit abit to hard thanks for looking atb Luke
Sound like it could be air under the skin, called surgical emphysema.or crepitus. Usually happens when there is a cut near a joint and when the joint articulates it sucks the air in under the skin but can be second to infection. You need to sort the underlying cause and decide if it needs intervention.
edit to addd link although this is a bad case
http://dogscatskidslife.blogspot.co.uk/2005/11/subcutaneous-emphysema-in-canine.html