Alcohol affects your blood sugar level to such an extent, that it may cause loss of bowel function control, and cause diarrhea, with the same side effects as vomiting. Cause-and-effect: Just like your knees go weak on you from too much booze, so does your bowel.
*Do not brush your teeth, spray cologne, or put on tight clothes during your tanning time, which is 6-8 hours after your session. *You can apply a mineral powder on your face/body and wear lipstick and mascara if you are going out during your tan time. (6-8 hours after your spray tan).
A shower, like a tanning session, may tend to dry out the skin. While you can't necessarily wash your tan off, moist skin tans and retains a tan better than dry skin. On the pH scale of 0-14, the skin registers slightly acidic (about 5.6). Most soaps are well above the neutral pH, or about 7 on the scale.