Hi there. i have a 4 month old pup. its a fox terrier crossed with a beagle. i walk him 1 mile or 20 minutes each morning. yesterday when i returned from the walk to notice blood coming from his paw. it seems like between his nails or somewhere. i noticed this morning that he is keeping his paw off the ground a lot instead of leaning on it too. im wondering what i should do about this. would it be ok to bathe it in warm salty water and dont walk him for a few days??