Well, if this don't beat hell. Got a scratch from fencing 10 days ago. Went in and washed it per usual. Next day it looked like it was getting infected. Put Triple ATB Ointment on it. Next day, it is even worse. About 2" x 4" red area and itching to beat all. Plus arm was puffy. Went to Dr. He said Triple ATB (antibiotic) has Neosporin in it. Neosporin is highly allergenic (hospitals and drs never recommend it). It was getting blisters around the wound. Classic Neosporin allergy. He put Silvadene on it, did a culture, put me on Bactrim DS (sulfa-based ATB)for cellulitis. Next day wound is one huge blister. Itching is subsiding. 3 days later, area is drying and healing.

This morning I get up and shower, look in the mirror, OMG, looked like I had the measles! I remember waking in the night sorta itching all over.

Back to dr. Now I am also allergic to sulfa drugs.

If I ever become allergic to chocolate, just dig a hole in the garden and throw me in it! I have never had an allergy in my life!

I also had something like that. Had a surgery and tape put over the area. 2nd. day swollen and red and itched. Doctor said why didn't I tell him I was allergic to tape. I never was before. The area is scared. Years later I had a spot removed on my neck and the Doctor put tape over it. Next day red, swollen and itched.
We can become allergic at any time I guess.

I have no scientific facts to back this up but I have read several times over the years that "about" every 7 years our body's chemistry changes to some degree.
I have also found that moving from one area of the country to another can bring on allergies...some times just due to differing weather conditions...like longer warm seasons vs. more cold weather.

I too am allergic to sulfa drugs...found out when I went in to be treated for a bladder infection! Ended up worse from the drug than from the infection PLUS I had to pay for a more expensive script!

Two allergies? Knock on wood, I don't think I'm allergic to anything, although maybe getting more sensitive to some things as I get older. It never even occurred to me that you could be allergic to Neosporin--we use that a lot at our house.

--J--

I know I'm becoming more 'delicate' as I age. I can't drink coffee after 11am. Two glasses of wine will keep me awake,can't wait till I'm old. not saying you guy's are old,
Mavis

I am thinking, duh! My DS is allergic to sulfa. My brother is allergic to sulfa.

I am also thinking allergies are hereditary!

It's a "b" to get old (er) !