My beard is still red after beard transplant. Should I use Hydrocortisone Cream?

Hi doctors i hope you are well. Actually i had beard transplant 4 months ago, but my beard still red ? specially when i shave my beard all people can see the red beard line from Ear to mouth i asked my doctor and he tell me to use " Hydrocortisone Cream " i searched about this Cream, but some doctors Warn to not use it " more than one week " i do not why ? so do you advise me to use it ? Thanks.