Put honey on it and cover lightly with cloth. I have done that all night while asleep so did t think about the stickiness.

Try using this stuff it’s a wound cleaner and it’s what they have been using on me after my surgery to stop any kind of infection or anything like that if you read the name of it it means antibiotic that is what the last couple of letters mean put it on cotton wool and soak it and wipe all around the skin area that is infected you can get this from your doctor 👨‍⚕️ nurse 👩‍⚕️ or even eBay here it is below 👇 In the photo
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Don’t use tea tree oils it blocks the pores in your skin and you will make it worse

Also if I can help it I try to gauze any open flare ups to try and prevent it from spreading on my skin with a little TAO or Bacitracin ointment. She can also try a natural coconut oil mixed with a little tee tree oil on any areas not open and oozing. Don’t put the tee tree oil directly on skin without mixing it into coconut oil first. Hope she finds relief soon.