ຕ້ອງການຄໍາແນະນໍາພຽງເລັກນ້ອຍ. I’ve just had a large piece done down the side of my back but I don’t own a shower only a bath tub. How long do I have to wait before I use it properly? (Making do at the moment with jugs of water and careful washing). Will it be ok if I make sure it’s unperfumed lukewarm water?