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).
  It is not necessary that you wait.   Showering right after tanning has no detrimental effect on your tan (tingle and bronzers aside). The issue of drying of the skin â¦ by showering is so small that it will not interrupt the tanning process, or cause any uneveness in the tan.econd, lotion absorbs better â¦ just after you shower. Finally, if you are using a product with DHA bronzers in it then it is important that you wait between 2 to 4 hours after tanning before you shower or else you lose some of the color you were headed for. Hope that helps. + 104 others found this useful.