only because you are just an adult dealing with this and never having chicken pox, i would most definitely see your primary doc for any possible preventitive treatments or things that just can make you have a less impactful 'run" of them. while i know measles is and can be pretty bad if you get it older(hubby got this at age 19, and did fine too, but DID have to wear sunglasses(even in the house 24/7) for some reason since it can create blindness in adults), i am not too overly certain about ch pox, since that virus does stay in your system for life, and as IBAP mentioned, will come out in the form of shingles once you have had it which will show itself from whatever nerve root it decided to take up spce on within your spinal column, within that specific dermatome/area of skin that particular nerve root simply innervates, but only if it gets activated?
but i would find out NOW just what any simple precautions you can take and what treatment options you can try if you even get this. i would not wait til you actually show signs of it in an adult if you have been living with a child who obviously has had this. i am suprised HER ped doc did not actually ask you about YOUR pox status when they saw HER, so YOU could simply be as informed as possible too? you just don't know if they could start you both on something that could lessen the overall impact NOW when it does actually show itself by simply seeking out the advice of your own primary in this situation? good luck to the both of you here. i hope if you do happen to even get this, it has little consequence for you. let us know how things are going, K? FB