I had a Brazilian laser hair removal (5th session) two days ago, and very itchy, red and swollen. Any suggestions? (photo)

Apply hydrocortisone and take Benadryl.  It should go away in a day or so. Let the technician know of your reaction so they don't increase the energy for your next treatment.

Betamethasone cream will help but you will need a prescription for it. You got a good treatment but you should advise your technician of your result because going higher in energy will probably be too much and could result in a burn. Apply the betamethasone after cool water daily. "This answer has been solicited without seeing this patient and
cannot be held as true medical advice, but only opinion. Seek in-person
treatment with a trained medical professional for appropriate care."