Follicular Study. Is it normal?

Hi. Am a patient with endometriosis for the past 6 years. Have a daughter who is 4 years old( follicular study and HCG injection was given to conceive, after that had c section). Now that we are trying to conceive for the second time Did follicular study this cycle Lmp 1/9/23. Day 3 to 8 given letroZ 2.5mg Day 9, 12,13 Day 16 of follicular study et 10.3mm. Follicle ruptured. Given HCG 5000iu in day 13 when follicle was 19.6mm* 16.3mm.. Had IC on day 9 to 16 (5 times). Doctor advised to do for 1 more week. But couldn't do. From day 16 advised to take duphaston 10 mg 1-1-1, taking from day 2 surema XT 0-0-1. After I started to take duphaston feeling nauseated and having acidity. Also developed rashes in the face. Is it normal? Pls advise if we are going on the right path.?