Because your tests are normal and you completed a long course of sulfamethoxazole/trimethoprim (Bactrim DS) for the past E. coli infection, an active bacterial prostate infection is less likely. Instead, you may be experiencing Chronic Pelvic Pain Syndrome (CPPS), which involves non-bacterial inflammation or pelvic muscle tension. However, a physical prostate exam is an important step we are missing. I highly recommend seeing a urologist for this exam.

Your doctor has prescribed Bactrim (sulfamethoxazole/trimethoprim) to target the infection, Wysolone (prednisolone) to reduce swelling, and folinic acid to protect your healthy cells during this extended course. Because 45 days is a long duration, your doctor likely suspects a specific, deeper infection. It is very important to complete the tapering schedule of your steroid exactly as prescribed and attend all follow-up appointments to monitor your progress.

As your infection went undiagnosed for six months, the prostate and surrounding tissues can become deeply inflamed. Even after sulfamethoxazole/trimethoprim (Bactrim) successfully clears the bacteria, it is very common to experience residual burning, testicle pain, and discomfort after ejaculation. This healing phase can take several weeks to a few months as the nerves and tissues calm down. Please continue working closely with your doctor, as pelvic floor therapy or gentle anti-inflammatories can often help ease these remaining symptoms during your recovery.

Since you are allergic to sulfa drugs, you can safely use several non-sulfa treatments for itchy skin. For topical relief, over-the-counter hydrocortisone cream (0.5% or 1%) can reduce inflammation and itching. Calamine lotion is also a safe, soothing option. For overall relief, oral antihistamines like cetirizine, loratadine, or fexofenadine are safe and do not contain sulfa. Avoid scratching to prevent infection, and keep your skin hydrated with a fragrance-free moisturiser. If the spots spread, become painful, or do not improve within a few days, please consult a doctor for a proper diagnosis.

If a patient has a known allergy to sulfa drugs, they should avoid taking Bactrim DS (Sulfamethoxazole + Trimethoprim), as it contains a sulfonamide antibiotic that can trigger allergic reactions ranging from mild skin rashes to severe reactions like Stevens-Johnson syndrome; even if previous responses were mild, caution is strongly advised, and a healthcare provider should be consulted to consider safer alternative antibiotics.

It is generally safe to take the homeopathic remedy Berberis vulgaris alongside your prescribed antibiotic, Bactrim DS (sulfamethoxazole/trimethoprim). Because homeopathic preparations are highly diluted, they are unlikely to interfere with your antibiotic. However, your top priority should be completing the full course of Bactrim DS exactly as prescribed to clear the infection completely. Please stay well-hydrated to help flush your kidneys, and let your prescribing doctor know about any additional remedies you are using.