What is causing an allergic reaction?

The last couple of days I have been waking up in the mornings and I will sneeze and my asthma will slightly act up, my asthma only acts up when I am allergic to something. I recently adopted a puppy but I have had a dog for 13 years prior to my new one...

I have recently started using Whey Protein and multivitamins as part of my workout routine. I have recently started getting allergic reactions. I know i have allergies to ragween (a seasonal thing, occurs in the spring in fall) but these didn't occur...

My fiance breaks out in a rash/hives whenever when spend time outside in the spring and summer. What could be causing it and what can we do about it? It seems like an allergic reaction to a bug bite, but we're not 100% sure it's a bug. It only happens...

I have found that whenever I put sunscreen on my back and chest, a few hours later I begin to react to it. I think it's an allergic reaction -- a ton of tiny red bumps form that ...show more

Drinking Captain Morgan spiced rum causes an allergic reaction. Splotchy red spots all over neck, and face, then into the chest and arms. Very hot feeling, lips turn dark red. I have no known allergies to anything else. I've tested this about 6 times...

I've been ordering House fried rice for years. The last two times I've ate it, it has given me a rash around my mouth. What could be causing it all of a sudden?

I was in a car accident recently and had two plates and multiple screws put in my left ankle and was also diagnosed with three herniated discs in my cervical spine. I was previously on vicodin 10/325 and the doctor changed it to percocet 10/325 (4x a...

I have recently been prescribed 'Accutane Isotretinoin' to help treat my acne, about 4 weeks into the course I woke up in the morning and I had suddenly come up with these little red itchy spots from my neck to my cheeks. Before blaming my medication...