Not always, but in young ones it's normally puppy dermatitis. Puppy dermatitis is normally tiny bumps, and hives are normally larger bumps.
Most allergies in dogs don't show up till around 6 month old.
Not all those who wander are lost.
Life is just a leap of faith.
Spread your arms and hold your breath and always trust your cape.
Two things define you. Your patience when you have nothing, and your attitude when you have everything.