Effexor XR and antibiotics

I've been on Effexor XR 75mg for 8 months with multiple side effects; headache (feels like the top of my head will blow), stomach pains, constant nausea, excessive sweating, body tremors & a skin rash that started on my chest and has moved to my back, arms & on my scalp. The rash has to be an allergic reaction to this medication. I have went through 3 rounds of antibiotics with absolutely no response. After reading the side effects of Effexor, I am going off this drug - cold turkey. I am on day 6. You name the withdrawal symptom I have experienced them!! eg:Excessive swings in body temps- I am either sweating or chilling to the point I have to get in hot tub to stop shaking, Brain zaps, severe nausea. unending diarrhea - still hitting on day 6, nightmares, heart racing, extreme rage but I feel things are a little better today. I am sticking with this until the end. If you are contemplating getting off this drug you should talk to your doctor and keep in mind days 3 thru 6 will be the worst of the withdrawal so be ready to lock yourself in your home for about a week with hot & cold drinks(tea & 7up) blankets and pray for help to see you through.