My dog has had his shot knot since october?

he is a chihuahua minpin mix and i have had him since october, he got two shots in the same place and it irrated him and he pulled out the hair, now the hair is slightly growing back, has little hair strands, but is no where close to being fully covered.. is there anything i can do

and also

there is this little patch of hair that seems thinner

like you can see some of the skin if you stare closey for a while, i just wanted to know what this could be, maybe coat changing

My dog has had his shot knot since october?

check with vet or breeder. He may be allergic to alchol or to the vaccine. IT is too hard for me to tell. maybe change locations where his shot is given..maybe it is just anxiety

My dog has had his shot knot since october?

adverse vaccine reactions are common and some are more severe than others. there is a great yahoo group w/ informative archives at http://pets.groups.yahoo.com/group/Beyon...

vaccine reactions don't lend themselves to simple answers, i suggest you check into the beyond vax list.

did your vet file an adverse reaction report? lumps and hair loss after 6 months seems like an adverse reaction to me. be sure you know which vaccines caused the reaction and avoid those in the future.