Hello,Thanks for posting your query at DoctorSpring.com I can understand your concern.From the picture it seems to be fungal infection called tinea or ringworm mixed with secondary bacterial infection.It will need a course of oral antibiotic like azithromycin and oral anti fungal like lamisil ...
Similarly, othertetracycline antibioticssuch asAmoxicillin, Azithromycin, Cephalexin, and Ciprofloxacin provide alternative options to Doxycycline in different scenarios. Your doctor will prescribe the best alternative antibiotic based on your illness.
I've developed a mild rash from doxycycline. I don't think that it's serious enough to see a doctor about. I just have hives on my legs and chest, along with redness. Will an over the counter steroid cream from the pharmacy be enough to treat it?