My mother has stage IV melanoma. She has a small nodule that has gone unchanged. She just received a round of yervoy and possibly pd-1 (maybe placebo). This week, four days before her 2nd treatment today, she developed a severe cough. Is this serious or just a side effect of the drug?
I Hi, diverse has malignant melanoma stage 4. Her severe cough may be due to some spread of disease or other cause.  She should go for x-ray chest to find out the cause.  Then she should take treatment accordingly.  It is not due to side effects of Chat Doctor.  Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.