I called the vet today and they said it is normal and it actually lets me know the vaccine is working as long as when she sneezes its clear, no congestion or yellow to it, they said it would last about 10-14 days and to not worry about it. so im very glad she is ok. she is 14yrs old so I always get paranoid since the last three years i have lost both my older dogs, she is all I have left...lol Thank you all for your thoughts and good wishes.