I am suffering from warts and molluscum. How did I get the infection?

Hello doctor,

I am a 24-year-old male. Last year, I had a few molluscum contagiosum in my lower abdomen. I took the treatment, and they were gone. After two to three months, I got one skin tag on the skin around my penis. I applied a lotion (Salicylic acid 16.7% and Lactic acid 16.7%), and the skin tag was removed. But, it came back after three months. Currently, I am suffering from genital warts and taking treatment.

My doctor told me to get some tests and here are the results. Lipid profile - triglycerides 125 mg/dL, HDL 35 mg/dL and LDL 113 mg/dL, CBC - lymphocyte 44%, serum amylase 121 IU/L, Helicobacter pylori IgA 0.45 (negative) and urine test - pus cells 3 to 4/HPF. Currently, I am taking these medicine as advised by my doctor. Zincolak one tablet twice daily, Zycolchin one tablet twice daily, and Dicaris 150 mg one tablet once a day for three days.

My question is that I am a healthy man with high immunity. I never get sick all around the year. How did I catch this infection? I have multiple sex partners, but I never had sex without a condom, or my condom never broke. Please give me a detailed answer and also give me advice for the treatment.