Hello, my son was on Doxycycline to treat his acne. What a horrib...

Hello, my son was on Doxycycline to treat his acne. What a horrible medication. It damages everything in a teenager. I do not understand, that a doctor is allowed to just give it away and do not even make further test later again, at least some bloodwork! My son has major problems with his stomach, blood in his stool and headaches . He was checked for plenty of other things, until I found this website. Thank you !!! Somebody needs to stop this company by making a profit from these horrible pills. This cannot continue this way! Does anybody know, when the pain stops? He is not on this pill anymore since 2 months and his symptoms are still there. I will contact the company as well in this matter, but they may not even know.