Faraaidh of wudhu

Peel off nail polish

Q: I would just like to know if it is permissible to wear 'peel off nail polish' that you can put on after performing wudhu, and then peel off when you need to make your next wudhu, it peels off easily, also comes off in water. So would it be permissible to use and can you pray salaah with it?

Wudhu With Nail Polish On One's Nails

Q: As nail polish nullifies wudhu, is it okay for one with onychophagia (nail biting disorder which is part of the OCD spectrum) to wear clear nail polish or bitter tasting nail polish to prevent her or himself from biting as it is damaging to the skin around the nail, cuticles, etc and puts the person at a risk of infection if they don't take steps to stop nail biting or is it still haram despite the health risk?

Wudhu If Skin is Overlapping

Q: I have on my feet a lot of half peeled off small skin pieces (probably from little fungal infections) mostly in the form of circles. Because of this the small peeled skins borders are hanging over the skin below i.e. there are two layers of skin. Is washing normally sufficient in order to make wudhu? Also sometimes, I have the same on my hand (2 or 3 or 4 very little circles). Is just washing normally enough?