Can allergies develop suddenly?

Just recently I have been sneezing an awful lot and getting rashes on my skin. I thought at first it might be hayfever, and thought nothing of it. But today, I spent the day at my boyfriend's house and had none of the symptoms there.
I just arrived home and my two golden retrievers came to me and I stroked them. A few seconds later I was getting an itching sensation in my arms, and I can't stop sneezing.
Is it possible that I have developed an allergy to my dogs, and if so what is the best way to cope with it... I can't bear to part with my dogs because they're like part of my family. I'd rather suffer than have to see them go somewhere else.
Thanks

Allergies can develop and even change during your lifetime. I didn't develop
any allergies until I was in my twenties, and then some of those went away or even changed into something else when I was in my thirties.

You can try some of the over the counter allergy medications and see if they help, and then if the problem continues you should make an appointment with an allergist to figure out what is going on.

I am a pet lover also, and would not give up my cats or dog due to an allergy.
Please ignore what some obvious dog hater is saying on here. There are always ways to work these problems out.

It may well be something that the dogs are coming in contact with and you are reacting to that. Do not give up hope, or your dogs either.

I have had allergic reactions to various cleaners and freshers, and was even allergic to a fabric freshening product that was sold as an anti-allergen; so it takes a bit of research to figure out what works.

Good luck and have a good night.

Yes it seems to happen often in the Washington DC metro area.
They can, my older sister suddenly became allergic to shellfish at 23.. We grew up eating it, now she has to carry an epy pen around.. she blows up like a balloon if she eats shellfish now
I'm in NYC & that's how I found out I had asthma...one day didn't have it...day after having a sever asthma attack.

It went away like that too...
Sure they can. My uncle took sulfur pills for years and one day all of a sudden he was violently allergic. Now if he took one he could die. So yes, your body can turn on you at any time.
Yes it is possible - if it is mild, Benadryl should do, but best thing would be to tell your doctor, they may be able to test you out to make sure it is the dog and not something else (like... did you change dog shampoo lately?)
yes, i developed a food allergy a few years back that came on suddenly. i used to eat it all the time and now i wind up in the ER if i have just a little bit.