Hello Thanks for query .Inability to retract foreskin over glans penis with bumps over glans penis are due to infection of the foreskin and glans penis (Ballano Posthatitis). You need to take broad spectrum antibiotic like Cefixime along with anti inflammatory drug like Diclofenac twice daily .along with topical antibiotic ointment like Neosporin twice daily. Ensure to wash your genitals with warm water twice daily. Ensure to avoid sexual encounters till it heals up completely. If problem persists even after taking medication for a week consult qualified General Surgeon or Urologist for evaluation .You may need to get circumcised . This is a simple surgery done under local anaesthesia as a out patient procedure and offers permanent cure and helps to have enjoyable sex for rest of the life. Dr.Patil.