Hey, I'm sorry you didn't get any responses to this. If it's not too late then I have a couple of ideas:
- you could go shopping for some light clothing that covers up. Loose cardigans, linen trousers etc could keep you cool enough.
- you could look into camouflage make-up
- if you are unable to find a suitable solutions, it would maybe be worth speaking to your family to explain the situation so that at least it's out in the open and won't be a shock to them