Welcome to Healthcare Magic Forum
Post waxing allergic sensitivity and burns are quite common especially in sensitive areas like the groin and face..after a hot wax..but such lesions are usually superficial in nature and heal up without much scarring or pigmentation.
I would advise you to keep the area clean and dry
water to clean the area twice a day
Apply an antibiotic - steroid combination cream (Flutibact cream or fucibet)...as this will decrease the chances of superadded infection as any kind of infection over the affected area as well as decrease the allergic component ie redness
Take oral antihistamines like levocetrizine once a day to reduce the redness and irritation
Usually this treatment is sufficient to control the redness but if the lesions persist inspite of the treatment, then sometimes a short course of oral steroids
have to be given along..
Hope it helps
Wishing you best of health
Dr Geetika Paul