Please choose the correct ending to complete the given sentence: Health: [header] How to travel with psoriasis [title] Visit your dermatologist. [step] Speak to your doctor or dermatologist any time you travel to a new place. They can advise you how to minimize the risk of a flare-up at your destination.

Ending1: [substeps] Never travel on foot or use crutches during flare-ups. You'll be at higher risk of psoriasis if you trip on crutches. Ending2: [substeps] Psoriasis is a very contagious disease that can be fatal. It is also cause for concern for those you encounter or make friends with. Ending3: They can also give you prescriptions for injection needles or extra medication. [substeps] Tell the doctor where you are traveling and give them any information you have on the destination's conditions. Ending4: Your doctor may also recommend diet changes if you are lactose intolerant. Things to consider include : [substeps] Progesterone can cause flare-ups due to inflammation of the skin.

Answer format: ending1/ending2/ending3/ending4