Can i use any antiseptic cream for jock itch. will it cause any other complications? i am 20 yr old male?

Use antifungal cream, not just any antiseptic. Talk to the pharmacist at the drugstore. If that does not resolve the matter in a week or so, it would be prudent to see a doctor. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV and Covid vaccines.