The chickenpox vaccine first became available in 1995. I'm not sure when you received your childhood vaccines, but it is likely that the vaccine was not available during that time.
Talk to your doctor to see if you qualify as a "susceptible adult" and would benefit from receiving a vaccine against chickenpox. You might first be assessed for immunity, and if you did not show immunity, you could be vaccinated if your doctor recommends it.
Even if you have had chickenpox, there is no significant risk to receiving a second vaccine.
It sounds like you're having an allergic reaction to something that either you touched or ate or drank. Try to consider what you did the night before this occurred to see if you can pinpoint anything that you did differently. If you can figure this out, it would be a good idea to avoid it in the future.
It is more than likely that your daughter's skin is translucent enough that you can actually see the capillaries of her blood system below the surface of her skin. If this is not causing her any pain, it probably isn't anything you should worry about.
Your wife is very fortunate to have such a considerate and loving husband.
As you suspect, when a patient responds by forming keloid scars, there is a greater than average chance that this will continue to occur.
I assume that as you mention she has been given treatments that included shots, she has access to a physician who can help you make an appropriate decision in this regard.
Surgery is not as good an option for your wife, but you should discuss both microdermabrasion and laser resurfacing with your wife's doctor. Both are better alternatives, and work by focusing on the over-development of collagen that is the key problem with keloid scarring.
Here is a link to an article on keloid scars that you may find helpful.
With that money that you are no longer paying on the Proactive, you should be able to pay for one or two doctor visits to see what would be an appropriate treatment regimen to help you deal with your acne.
Even without health insurance, you can still go to the doctor. Many doctors even work with self-pay patients and provide discounted rates. Don't be afraid to ask for this consideration when making your appointment.
Unfortunately, it would be inappropriate for me to give you medical advice without the benefit of seeing you and having access to your past medical history. Given that you are under the care of a physician already, it would be best if you direct this question to that office.
As Annie mentioned, your pharmacist is a very excellent resource when you have concerns about drug interactions and pre-existing conditions, including both prediabetic condition and depression. They are experts on medications, their side effects and interactions with other medications. This should be your first stop, then if your questions are still not adequately answered, return to your prescribing doctor.
It sounds as if you should see a dermatologist for some help managing both your eczema and your acne. I can certainly appreciate how frustrating this is for you. One thing I can say, hiding it never helps. This is a condition that you have to deal with, and sometimes it just helps to be very up front about it with your friends and classmates and tell them you can't help it. It's not contagious, so they should have nothing to fear.
The most important thing with eczema is to keep your skin moisturized, so finding a moisturizer that has no dyes or fragrances in it is your first step. There are a number of relatively inexpensive products available over the counter that you can try.
Eczema is also made worse by stress, so working on managing the stress in your life is going to be a life-long goal for you, so starting early is a good plan.
I hope some of these suggestions will be helpful to you.