Dog Allergies Treatment

I have a 14 week-old miniature dachshund puppy and about a week ago I noticed a small (about 2mm) bump on the top of her head that almost resembled a wart. Since then, a few have appeared down her neck and onto her back, as well as one near her anus. She has been scratching moderately since I’ve brought her home and has had a bath with oatmeal and aloe vera shampoo in attempt to alleviate her itching, but to no avail.
The bumps are not red or discolored and there are no signs of hair loss. Also, I did see a flea on her the other day and will get Revolution for flea control when we visit the vet.
Could this be a sign of an allergy to flea bites? Food allergies? I have her on by nature puppy formula right now which has no wheat, corn or soy, but have been considering switching to something that doesn’t contain chicken or beef.
She has an appointment to see our vet on Tuesday, I was just wondering if anyone has experienced similar skin problems with your dogs.

Hi everyone, I need to ask you this because my vet’s office is closed (I will call in the morning as well)
I have an Australian Shepherd mix he’s about 80 pounds (3 1/2 yrs. old), I think he may have allergies. We just put frontline flea on him last week and the fleas are gone.
But it seems like this time every year he starts getting these red blotchy like spots on him, I know most of this is from the remaining flea bits, he is constantly scratchy really bad tonight, and he’s whining when he does this. I know he itches.
I have read some past questions about Benadryl for dogs, but nothing really saying what type of benadryl, (liquid, pill childrens etc)I know not to use the ones with Tylenol and stuff in it since it is toxic.
The only thin I have available at hand is the equate brand (walmart) pill form allergy med. Containing 25 mg of diphenhydramine hydrochloride
Can I give him one of those until I can contact y vet tomorrow?

I ask because I use front line on dog and put it on correctly but poor thing still gets fleas fairly bad, my cat however isn’t on anything and doesn’t get them at all. Even after ill get fleas off of dog and he will be free for a week or so he still will scratch and be up all night. Could allergies or skin problem make fleas worse?
He’s a 6 yr old poodle

I have a Yorkie and she is constantly licking and scratching herself until she is raw and bleeds. Also so has lost a lot of hair from doing so. We have given her baths with allergy shampoo and sprayed her with anti-itch spray and nothing seems to work. What could it be? And does anyone know any ideas to fix it?

Collar
Spare Collar
Lead
Spare Lead
Identity Tag
Harness
Food Bowl
Water Bowl
Food
Treats
Bed
Blanket
Insurance
Seat belt
Dog Crate
Chew Toys
Tooth Brush
Tooth Paste
No-Chew spray
Whistle
Shampoo
Towels
Ear Cleaner
Flea Repellent
Allergy Medication
Box File For Important Papers
Puppy Gate
Grooming Brush
Massage Mitt
Dog Book
Big Bag
And when you got your dog what things did you wish you had?