This seems like an allergic reaction. You can give dogs human Benedryl. Talk to your vet about the specific dose you should give your puppy.
6 months
Any time from 6 months on is possible for a Labrador. Usually it is around 8 months of age.
two months
Your Labrador male dog should start barking at strangers when it is at least 12 months old.
It could if it was bitten by a rabid animal.
no.
can mate every 3-4 months, BUT IT ISN'T AS SAFE AS 4-6 MONTHS!!!!!!! :)
Five months is far too long for your foot to remain swollen. You need to see a doctor to find out what is causing the problem.
A female Labrador can go into heat as earlier as 6 months of age. However, usually it is around the 8 month range.
A Labrador's first heat will be from 6-8 months old. They will go into heat for 3-4 weeks, twice a year.
Time to see a doctor.
Yes it is normal. Lymph nodes can remain swollen for months after a cold or infection has passed.