I doubt it's shingles, Pamela.
I've been there and done that, and it hurts like hell. Not just an itchy problem. Red, scaley skin, small blisters that scab over, and lots of nerve pain. I had them on my head, which is the most painful place for them to break out. Whenever my skin starts to itch, normally, I hit it with a sunburn remedy of aloe infused with lidocaine. The aloe moisturizes the skin and the lidocaine numbs out the nerve endings. I'd try something like this before I'd head to another doctor. It could be something as simple as dry skin. My skin doesn't look dry, but some days it itches the heck out of me.
If you do go see a doctor, I'd see a general practitioner first. If the itching is serious, he can refer you to the right kind of specialist.
Just my opinion,
I think I am one of the people that you were referring to about suggesting you go to the doctor. In your original post, you just mentioned your symptoms. In your second post, you mentioned all the different choices in doctors that you could go see. You never posted that you had already been to the doctor and since you didn't mention the itching during your appointment, technically, you still haven't addressed the problem with a medical professional. You can't fault us for suggesting intervention by a doctor. We can only give our advice based on what details you share with us. In the future, try making a list of all the things that you need to discuss with the doctor ahead of time. That way, you don't have to trust your memory to cover all your issues. A list is especially helpful if things with the doctor get you flustered or upset, or if you really feel bad that day and just aren't on top of everything. Just something to keep in mind.
Ps just wanted to second that you can get an allergy at any time to any med. I have several allergies to antibodics and some of them new and have taken them all my life.
Took a sulfa last yr for a sinus infection and ended up in the hospital getting pumped full of tons of stuff because my throat closed up and I looked like the USA map the hives were that large and they were everywhere! IT sucked!