I am a 21 year old student, dark inner thighs is my problem. My thighs are big. There is no gap between my thighs

I am 21 year old student with big thighs without thigh gap & Dark inner thighs is my problem. I have consulted many dermatologists and used many ointments but nothing gives any result. I am not confident about my body beacause this makes me really down. Dark inner thighs and patches are present between two thighs and small Black herpes are present. Can I remove this dark pigmentation through laser treatment or is there any other medicines available? How much does it cost for laser?