Assalamu Alaikum Ustadh. If a woman put chemical henna on her (which forms a barrier) during her menses and when she has to start praying again, the henna is still on her. If despite trying she is unable to remove it fully, should she do tayyamum after ghusl or wudu till it disappears?

Ustadh AbdulAziz al-Haqqan

Look it up online, as there is always a way to remove these things. Never apply this again so that you don't jeopardize your salah.