There are ways to avoid light marks associated with spanking play, and to help dissipate bruises faster.
In my experience, both Arnica (taken internally) and Vitamin K are good supplements to take prior to engaging in spanking play. Arnica gel is used by many - as well as Vitamin K oil - topically, and with good effect. Below is an article I found which gives a bit more information on supplements and vitamins. Of course, always check with your physician or pharmacist to make sure that these do not interact with any other medications you are taking.
For people who bruise easily, doctors suggest taking Vitamins C, E and K and zinc to help speed up the healing process of bruises and prevent future bruising.
Vitamin C can help with bruising because it increases collagen in the body, reduces inflammation and builds up the immune system. This vitamin may be especially helpful because of the citrus bioflavonoids and antioxidants found in citrus fruit.
Vitamin E is important for the prevention of bruising because it aids in blood-vessel function and tissue repair.
Vitamin K helps with blood clotting and strengthens the walls surrounding the blood vessels. People often use Vitamin K lotion and supplements to get rid of bruises quickly and to fade .
Zinc is a mineral that helps prevent and dissolve bruises because it assists in the development of healthy tissue and skin and is essential to wound healing. The best sources for these nutrients are the foods we eat including fruit, leafy vegetables, whole grains and nuts. These nutrients can also be taken in supplement form.
The propylene in pineapples can help your bruise to heal faster.
Papaya can help reduce the swelling of your bruise.