You are likely experiencing phimosis (a tight foreskin). The standard medical treatment is a prescription-strength topical steroid cream, such as betamethasone (0.05% or 0.1%). Applying this cream daily for 4 to 8 weeks, combined with gentle manual stretching exercises, helps soften the tissue so it can retract easily. Do not force the foreskin back, as this can cause painful swelling (paraphimosis) or scarring. Please consult a doctor or urologist for a proper evaluation and prescription, as they will need to rule out underlying infections and discuss whether further treatments, like circumcision, are necessary.