Hi again Madelin,
Gobe raises a good point about the dust mites and the bedding... Also, Maggie has asked some good questions. Thanks for answering our questions and I hope you come back and ask/answer some more so we can try to help you as much as we can while you await your doctor's appointment.
On the subject of the doctor, I would see if they can put you on some kind of wait list, so if someone cancels then you can take their spot. Also, see if you can get across that this is a bit urgent... A month wait for a doc? If it was a dermatologist I would understand... Are you with some kind of HMO, where you have to go to your Primary Care Physician first, even to get a referral to a derm or something? I have a PPO plan where I am allowed to go basically to any doc/specialist I want.
New house? Congratulations! But of course, you do see where we are coming from with this as you picked up our train of thought there... You may be sensitive to the new stuff you are using, even new blankets, pillows, mattresses...
The locations that you describe for this "rash", you mentioned face, neck, and underside of arms (forearms or tricep area or both?)... Does it appear anywhere else? Legs? Body?
If those are the only areas then would think carefully as to what comes in contact with those areas and not other areas... A good example is the pillow for the face and maybe even arms... another example is some kind of facial cleanser that you don't use anywhere else. Do you understand where I am going with this? If it is soap/cleanser I do like to recommend such things as Dove cleansing bar and Cetaphil bar and their liquid cleanser... The shampoos are another possible culprit so I am glad you are going to look into that as well.
If you find the cold water helps, then perhaps you could try putting your moisturizer in the refridgerator and apply it cold when you get an itch. You can also do this with hydrocortisone. Since you are in the States you can get a brand called Cortaid, which is what I used to use. The "maximum strength" version is hydrocortisone 1%. I liked the cream better and I think for you the cream would be preferred over the ointment.
The acne thing is a bit troublesome.... did you say you had another medical condition that is causing this? Are you on any other medication?
Laundry detergent and soaps are always top suspects, so let's see if we can't get you something that will be good for you to use... Please find out what you were using before you moved... What are you using now? I always recommend the ALL brand, they make a "Free and Clear" version in a white bottle. Liquid detergent is better than powder because it dissolves and mixes better, doesn't leave the residue that the powders can sometimes. Also, the dryer sheets, I would ditch those. Gobe says they are evil
and I tend to agree. If you are not having an issue with using these then that's fine, but we'll still think they're evil
Let's see what you were using for laundry, dishes, soap, shampoo, etc. before you moved, and what you are using now... When you find out please come back and let us know