Hi, Since the dog bite was bleeding, it qualifies as a Category III exposure, for which both anti-rabies vaccination (ARV) nd rabies immunoglobulin(RIG) are recommended., especially if the dog is stray/unknown/unvaccinated. Ideally RIG should be administered as soon as possible, preferably on the same day as the first vaccine (Day0). However, it can still be given up to 7days from the first vaccine dose if not already administered. So yes, if tomorrow is her 2ndvaccine dose (Day3), she can still take RIG, but it should be done UNDER MEDICAL SUPERVISION nd ideally without delay Pls consult the same healthcare provider,else visit a gov. authorized rabies treatment center to have this addressed properly. Wishing Ur mother a safe nd full recovry. Thanx🙏

Rabies immunoglobulin (RIG) is recommended for Category III exposures to rabies, which include single or multiple transdermal bites meaning bite that breaks through the skin, causing visible bleeding or puncture wounds.if thats the case then rabies immunoglobulin (RIG) can still be given even after 24 - 48 hours, up to 7 days after the first dose of the anti-rabies vaccine — but the earlier, the better.