You can develop an allergy against anything, at any period in your life - dogs, cats, pollen, milk products, and many other items. For instance, my wife developed an allergy to grass pollen when she was sixteen years old.
Wool allergies, flea allergies, food allergies, and skin allergies that can be genetic. (My CC has allergies.)
It's a raw, irritated lesion that results from a pet constantly scratching, chewing, and licking at an area of itchy skin. Many pets that develop them have allergies; they are particularly common in pet with flea allergies.
Allergies can kill you if you develop anapalactic sckock and dont get treated for it!
Ok, well the answer is no. You do not NEED allergies, you are simply born with, or develop it. If you really needed allergies, then everybody on the face of this EARTH would have allergies.
Yes a dog can have seizures from allergies
Yes it is possible
yes
Most of the dogs don't, but some of the dogs do.
Yes they can-however, nut allergies are extremely rare to develop later on in life.
You can be born with them or they can develop later in life such as after puberty.
Yes,to dogs
yes, you are able to develop mold allergies at any time during your life time. if you are exposed to toxic mold you can become allergic to its effects.