Nsalu za thukuta pazovala zimakhala ndi chikasu chachikasu ndi fungo losasangalatsa. Makamaka amadziwika ndi mabala achikasu a thukuta loyera. Zingwe za thukuta zimatha kutsukidwa, koma ziyenera kukumbukiridwa kuti madontho akale ochokera ku thukuta amatha kuchoka ku chikasu ngakhale atatsuka. Timapereka njira zodalirika kuti tichotse utoto kuchokera thukuta:
- Nsalu zachikasu kuchokera ku thukuta pa zovala ziyenera kutsukidwa ndi mafuta ndi ammonia. Kuti muchite izi, utoto uyenera kutsogoleredwa ndi mafuta, kenaka muwapukutire ndi nsalu yophimbidwa ndi ammonia. Kusamala kwakukulu kumayenera kulipidwa kumbali ya tsatanetsatane - ngati iwo sakupukuta bwino, akhoza kuyambiranso atayanika. Pamapeto pake, chinthucho chiyenera kutsukidwa m'madzi a sopo;
- Zovala zoyera za thukuta zikuwoneka, makamaka pa zovala zakuda. NthaƔi zambiri, njira yoyera imachoka pamadzi. Pachifukwa ichi, muyenera kunyamula chimbudzi china, kapena kutsuka zovala zonyansa tsiku ndi tsiku m'madzi ozizira;
- pa zinthu zambiri zowala nthawi zambiri zimawoneka chikasu chachikasu cha thukuta. Sizowonekera kwambiri, koma ngati aureolewa sachotsedwa nthawi yomweyo, imakhala yayikulu ndi yowala. Poyambirira mumayamba kuchotsa mawanga oterewa thukuta. Pofuna kutulutsa mchere wotchedwa aureole, n'zosatheka kuti nsalu yowonjezera yowonjezera 3% yothetsera peroxide ya hydrogen. Chinthucho chiyenera kutsukidwa kuchokera ku peroxide m'madzi ndi zouma padzuwa;
- kuchotsedwa kwa madontho kuchokera ku thukuta pa zinthu zamitundu zingathe kuchitidwa ndi chisakanizo cha mowa wotentha ndi yolk. Mmodzi wa yolk ayenera kusakanizidwa ndi 10 ml wa mowa wotsekedwa ndi kupukutidwa bwino ndi chisakanizo cha nsalu yonyansa. Pambuyo pake, zovala ziyenera kusambitsidwa.
Matenda a thukuta sikuti amangokhala osangalatsa, amawopsyezabe thanzi lathu. Ngati tsamba silikusamba, nthawi zina fungo losasangalatsa limapezeka, lomwe limasonyeza kuti pali mabakiteriya ambiri. Mabakiteriyawa amathandizira kuoneka mawanga ofiira kuchokera thukuta pa thupi la munthu. Popeza kuchotsa matayala kuchokera ku thukuta pazovala ndi kophweka kusiyana ndi pakhungu, ndiye kumitsani ndi kutsuka sikofunikira.