Hello,
Welcome to icliniq.com.
I can understand your query. Rather than going for empiric antibiotic therapy like Doxycycline and Clindamycin, we can go for a culture and sensitivity test of the pus specimen obtained from the infection site, followed by antimicrobial selection. Frequent usage of antibiotics can end in the development of antimicrobial resistance. Certain antibiotics may have to be given for a longer duration depending on the culture and sensitivity study.
When you get the lesion again, we need to collect a specimen from the site using aseptic methods and send it for bacteriological culture study. It is called a culture and sensitivity study. We need to find out which organism is causing it. We have a variety of organisms like gram-positive bacteria (Staphylococcus aureus and many more) and gram-negative bacteria (Klebsiella and many more). After finding out the organism, they study the sensitivity and resistance pattern of the particular bacteria towards various anti bacterial in the laboratory. Depending on the culture and sensitivity pattern, we can choose the sensitive antibiotics for the appropriate duration. There are also a few chances of the pathogen living in your skin as a colonizer and causing recurrent infection flare-ups.
The test name is culture and sensitivity study (you will get the report in three to four days, containing the organism name and its sensitivity pattern).
You can use 0.2% Silver Nitrate ointment (use it four times a day - external application over the affected site). You can use over-the-counter available antiseptic soap containing Triclocarban (make sure it has Triclocarban, which is an excellent antibacterial) to wash the affected area thrice a day.
Most of the infections will be taken care of by your body's immune system. I suggest you take fruits rich in vitamin C, food rich in vitamin D3, food rich in zinc, iron, and folic acid. You can include flavonoids containing substances like green tea two to three cups a day. All these are proven to improve immune function against bacterial pathogens.
Also, make sure that you are not suffering from any other conditions like diabetes mellitus, where there can be recurrent bacterial infections due to high blood sugar. You will be fine.
Regards.