Gamot ba sa singaw ang tawas? Pwede nga ba ang tawas sa singaw?

According to an article I've read from The Philippine Star, it's not true na effective ang tawas sa singaw. This can even aggravate them. How they work for people, that I'm not really sure. Personally, I used tawas once too, and it did its job. You may want to read about it here: http://www.philstar.com/punto-mo/2014/09/28/1374083/singaw-ano-ang-solusyon