I am taking doxycline for my acne. ive been taking it for about two months. i havent consumed any drugs ever since. however, i am going on vacation and i would like to drink alcohol and maybe even smoke weed. is it safe to do so?

No. Alcohol is a poison that never did anybody any good, ever, so stay away from it. Weed is a psychoactive drug that will mess with your brain. Weed users are called stoners for good reason. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov