I’d say twice a week to start, then once a week until there’s no mold left.
I just want to add that this approach adds to antibiotic resistance. Applying alcohol to a cut prevents infection and the need for antibiotic treatment. Another example of the doctors colluding with big pharma to sell more pills instead of something simple and cheap like rubbing alcohol. So what if it slows healing by a day or 2? It still heals. Infection would slow healing too.
You have no idea what you are talking about - how is NOT treating with anti-biotics going to add to “antibiotic resistance” ? Whynots approach is the simplest, most basic possible and doesnt even include alchohol - note that his ending paragraph is talking about treating an already infected wound.
I agree. Alcohol is rarely used correctly, anyway. To use it correctly, one must scrub the wound with alcohol and let it dry completely, then do it again. All it does, even if used properly, is dry out the bacterial cells. There are other preparations that do the same and better that aren’t torture.
As ** WhyNot** said, the best defense against infection in minor injuries is cleanliness. Your own body will do the rest.
matt357, how exactly does using water and water based cleansers add to antibiotic resistance?
Anyway, to answer your original question, use baking soda. It kills most molds. It won’t remove the stains left by the mold. Soap and water might, but your best bet is dilute bleach.
You could try Clorox Kitchen Cleaner. It’s just bleach and water. Of course, you could save a bundle by mixing your own. The only problem is bleach will eventually damage the spray mechanism. Mix a small amount and try it on a hidden part of the plastic, if it hurts it, dilute it more until you have the right mix. Also, don’t leave it on the plastic for more than a few minutes. Rinse it with clear water, if the stain fades, use it again. If it doesn’t, you could always paint it. 
When I was a kid in the 50s, iodine, in little brown bottle with skull and crossbones, was the standard antiseptic. If I cut or grazed myself, on it went. “If it doesn’t sting, it isn’t doing any good.”
Applying alcohol to a cut does not prevent infection. At best, it might kill a few bacteria already present in the wound, but it does nothing to prevent colonization with airborne bacteria or bacteria on the patient’s own other intact skin that moves into the wound an hour, day or week later, which is where most wound infections come from.
I see your logic, in that* if we could *prevent infection with alcohol (which kills in such a way that it doesn’t lead to antibiotic resistance) we wouldn’t need antibiotics later. But it’s an “if we could” that’s not borne out in reality. The best prevention for infection is to thoroughly clean with running water or saline for 5 minutes (which will flush all the bacteria currently in the wound out) and then to cover the area with the appropriate bandage to prevent new bacterial colonization - this works to remove bacteria without killing or damaging the cells that fight off future infection.
That is flat out untrue, All it does, if used properly is kill germs, very effectively I might add. If someone can’t stand a little stinging they are a baby. It is also less drying to the skin than soap and water. They could also use hydrogen peroxide or betadine.
Then perhaps you can find us some citations for your claims, seeing as we’re in General Questions and all.
picunurse, see you at the next Big Pharma meeting? I can’t wait…this month I get my Evil Nurse Cahoots pin! 
Moderator Warning
matt357, you have no idea what you are talking about. This is an official warning for violating my instructions not to post bullshit in General Questions in response to people who are providing factual information in response to your questions. Keep it up and you will find your posting privileges revoked.
Colibri
General Questions Moderator
PS. This is closed (as will be any other thread where you continue this behavior).