For very big open pores, the oil secretion needs to be controlled, because if oil secretion is not controlled, the pores wont reduce. For oil correction using salicylic acid based face washes, avoiding hair oil are important measures. Apart from that micro-needling or micro-needling radiofrequency, CO2 Laser are better options than just dermabrasion though microdermabrasion might have little effect on open pores.

Open Pores can be minimized with microdermabrasion. As you even have an acne issue I would suggest to have acne control peels too. You can opt for skin booster treatment also as it works on open pores and at the same time improves the texture and quality of your skin and adds glow and radiance

Yes Microdermabrasion will help improve open pores and acne marks . Get it done on a more regular basis . Also follow some routine home care

For dark circles: chemical peels and medicines 
For wrinkles: Botox will be an effective treatment

MDA will help in glow, reducing patchiness and gets the marks lighter in 1 shade. But if deeper acne scars n marks that needs treatments. Also for Bridal needs , 3 months in advance is a good time to repair the skin and get the best skin for D wedding day.

Open pores are nothing but opening of sebaceous glands which helps in maintaining natural oils on skin. some have small pores some big .
Complete removal is not possible nor desirable.
But yes it can be reduced by various treatment one of which is microdermabrasion

Hello, lets first find out its underlying cause of acne and treat it. Microdermabrasion can not be done when there are active acne. Treatments like Peels, photofacial, carbon facial, Hydrapeel will help in acne & pigments. After acne settles we can target scars & open pores with treatment like PRP, Microneedling and Fractional CO2 laser. In depth consultation and examination is required.

Yes . If you are following good skin care like cleansing, toner, moisturiser and sunscreen application regularly then microdermabrasion will help in reducing your problem.