It’s becoming more clear now that Demi Lovato will be in treatment for a lengthy period of time … canceling the remaining shows on her tour.

Demi has been making headlines ever since her heroin relaps which sent her into rehab back in July. The 25 year old has been battling her drug addition for years, and now it has caught back up to her.

Demi’s ‘Tell Me You Love Me’ tour dates in Mexico and South America have been scrapped. The singer was scheduled to perform September 20 and 22 in Mexico. Also canceled is her 6-city tour in Chile, Argentina and Brazil slated for November.

Demi’s entered rehab at one of the nation’s leading facilities for addiction and will be there receiving “extensive” treatment for months.