tampon

Q: I suffer with continuous slightly coloured discharge but it is not a large amount. I make fresh wudhu for every salaah as my discharge is ongoing. I sometimes due to circumstances am unable to make fresh wudhu and require to keep wudhu (i.e. due to travel or due to work etc). Please let me know if one can use a Tampon to keep wudhu across 2 salaah times, if the tampon remains dry on the bottom end and no discharge exists the outer area onto to under garments?

Q: Is it permissible, for a non-virgin, to use a menstrual cup? It is a small silicon cup (like a dummy), inserted into the vagina, to collect menstrual blood. It it then emptied and washed for re-use.