My dermatologist put me on 50 mg of doxycycline star meal or because of the sensitivity to my stomach and gradually increase to I can work my way to 100 mg twice a day I do take probiotic for this as well. But I would like to know is when should I see results? And if there are any other tricks I can get it so that I can take the doxycycline without any stomach or heartburn related issue. Ty!