Spare stubby holders,a tube of Silverzine and a tube of Butesin Picrate,and dont forget the Aerogard.
The Butesin Picrate is a must 
PS:- dont forget the Tea Tree oil.
PPS:- Dont put silverzine on and then go out in the sun,It's full of silver and goes black in the sunlight!But being an ex-B/maker welder it stops the sting instantly,you may need a doctors script ( well worth the hassle believe me on this one ) this is for real burns,not sunburn,it bloody works,if you touch a hot exhaust for instance this stuff stops the pain in a minute and no scar!
A medical opinion on Silvazine:
Silvazine is not a first aid treatment but is used to treat and prevent infection. It is used on burns with more than a trivial area of broken skin/blistering. These are the sort of burns you should take to the doctor, hence the need for a script. (Silvazine contains sulphur. Some people are allergic. There are reasons it needs a doctor's script) It's not designed for symptom relief, although it's best kept in the fridge and any cool cream will be soothing. After you put silvazine on, the burn should be covered with a sterile dressing, and so would therefore be hidden from the sunlight. Normally someone on silvazine treatment would be having their dressings changed and wound reviewed each day by the nurse. Silvazine is kept in the clinic. I've used it for over twenty years but never written a script for it.
Infection is one factor that contributes to scarring, but more important is the depth or severity of the burn.
There are other creams available over the counter that are for numbing the sting of superficial burns with unbroken skin, eg Paxyl, which contains a local anaesthetic.
Patr80l MBBS.
