So I've been using Rogaine liquid for the past year, but about two weeks ago, I started experiencing extreme itchiness on my hairline where I apply Rogaine. Also, the skin in that area became very rough, and somewhat swollen and red. So, to be safe, I switched from liquid to foam (since foam does not contain propylene glycol). Around the same time, my armpits and hands began to become very itchy as well. I took off my shirt last night to look at my armpits, and they were extremely red. So I look at the ingredients on both my deodorant and my hand lotion, and they both contain propylene glycol. So it seems to me that I have developed an allergy to propylene glycol. Am I overlooking another possibility of what is happening?
This leads me to another question: do I now have to switch over to products that do not contain propylene glycol? My hair product, soap, deodorant, and hand lotion all contain it. My shampoos contain glycol distearate; is that the same thing as propylene glycol? Can anybody help me with these questions? I'd like to go to a dermatologist with this, but I was just at one and I don't have the money to make another appointment. Any help would be greatly appreciated. Thanks.