"going on tetracycline was a failed attempt at curing my acne. i have mild acne with deep pimples sometimes. the antibiotic did not begin to work until after i was done taking it (i was on it for about 3 months), and it gave me bad stomach pains. after about 2 months of getting off of tetracycline all of my acne came back on my face, and it appeared to be worse on my back and chest. i do not recommend this as a remedy for acne. this was a big waste of time and i regret taking it."