QUES: Certain drugs can have specific side effects on liver heart or lungs so it is important to keep these checked regularly before during and after the therapy

correct the punctuation.

CORRECTED: Certain drugs can have specific side effects on liver, heart, or lungs, so it is important to keep these checked regularly before, during, and after the therapy.

QUES: A cough accompanied by phlegm often causes a whitish yellowish or greenish phlegm from the chest

correct the punctuation.

CORRECTED: A cough accompanied by phlegm often causes a whitish, yellowish, or greenish phlegm from the chest.

QUES: The Meli Madeira Mare surprises its guests with a number of exquisite facilities to choose from on your stay

correct the punctuation.

CORRECTED:
The Melia Madeira Mare surprises its guests with a number of exquisite facilities to choose from on your stay: