is it OK to take allergy meds such as Allegra, Benadryl, Sudafed, and also Zantac before lipo surgery?

I don't think there would be an absolute contraindication but this is a strange combination of procedures to do. It would have to be done with the consent of both the general and plastic surgeon.

The pictures aren't very revealing but in general liposuction four months after delivery should be okay. After pregnancy however abdominal prominence may be more than just excess fat of the abdominal wall.

If you weren't able to take the required amount of time off and had to get back to work earlier than advised, then this isn't unusual. Your recovery has been compromised and swelling will last longer than usual. You should be wearing your compression garment for the time your surgeon told you,...

Indentations, lumps, and irregularities can happen with liposuction but are not common.  I suggest seeing your physician for follow up care.  It maybe that ultrasound, radiofrequency or massage can help at this point.  If this doesn't resolve, you may need additional revision...

I am sorry that you are disappointed in your result. It is very difficult to know how to advise you with the given information. I am interested if your doctor measured the amount of removed fat or total about of liposuction aspirate. Those are two very different numbers. How long are you...