Could I be Allergic?

the past year i've got some major itching probs down there on and off, at first I blamed it on the razors I was using. But now that I think about it, it could be the laundry detergent I bought (its a cheap kind-wegmans brand) Its happened like 5 times this past year, its not a yeast infection. I cant see my gyno until another 2 weeks, anyone have any ideas? Major burning itching and irritation. I'm in agony, help!!!!!