Query on Covid Booster Dose.

My mother (having medical history of BP & Sugar) completed both dose of Covishield last year. During last week of Jan 2022, she suddenly suffered once from high fever - Our physician then advised Meftal Forte Tablets. We were asked to go for Covid Test only if her fever does not come down in 1-2 days & any other symptoms increase. By Gods grace, she was fine in couple of days itself with same medicine. She is very fine now with occasional dry cough. My question here is - she is now eligible for Booster dose after Feb 2nd. Can I plan the same for her immediately? Or should wait for few days/weeks/months? Please advise. This is also because I have other routine check ups planned in coming weeks, which will require us to visit different clinics, etc & would not like her to get infected by the virus anywhere.