What you describe that you have is a fungal infection called Thrush.
As a home remedy, and this works really well, is after washing the area without soap, is to apply a lot of natural set yogurt. The coolness of the yogurt cools the area, relieves the itching and also helps by reducing the inflammation in the skin. This is very helpful and can also be used by men if they experience a problem on their genitals.
You could see your doctor and get a prescription for an antifungal cream. You can also purchase antifungal cream medications suitable for the genital area from your pharmacist. Canesten is usually used, but you may have a different brand in your country, so ask the pharmacist for advice.
Another way is by taking a one dose oral capsule that you swallow with water called Fluconazole. Your doctor can give you a prescription or you should be able to purchase this from your pharmacist.
As you have a few spots/lumps on your vagina, it would be a good idea for you to make an appointment with your doctor to get these checked out. You may need an antibacterial cream or an oral antibiotic to treat that. The doctor may even be able to prescribe a cream that is both antifungal and antibacterial.
To help prevent getting Thrush (doesn't mean you won't get it again unfortunately) is not to use soaps, shower gels or bubble baths. This dries and aggravates the condition even more and also changes the PH level of your skin. When you take a bath you can throw in about 2 handfuls of oats into the water. This was recommend to me through these forums and I find it does help, it will also help your eczema condition.
Only wear cotton underwear and use non-biological washing detergents and fabric softeners that are suitable for delicate skins.
Have a healthy and well balanced diet with fresh fruit and veg and avoid sugary products, biscuits, sweets, cakes and the like and drink plenty of water so as not to get dehydrated. Eating natural yogurt will also help as it contains all the good bacteria that we need.
If you have diabetes, make sure that your sugar levels are well controlled.
Do not wear tight clothing or nylon tights. The moist warm area encourages fungal infections.
When wiping your bottom, wipe from front to back so as not to spread any bacteria. When having sex, make sure that your partner has clean hands and if he does touch your bottom area, make sure that he washes his hands before touch your vagina.
If you do decide to see your doctor, ask your doctor whether your boyfriend needs to be treated at the same time. Even though he may not have any symptoms he may still have a fungal infection and would pass the fungus back to you. Wait until you are completely clear before taking part in sexual activities.
Best wishes.
It sounds like a yeast infection to me.